diff options
author | Shreshtha Sahu <ssahu@nvidia.com> | 2013-08-01 16:14:59 +0530 |
---|---|---|
committer | Matthew Pedro <mapedro@nvidia.com> | 2013-08-07 10:09:49 -0700 |
commit | af42f432f683430df34a2a2ba084492daaae0a5c (patch) | |
tree | 8fa47c7ce091efab1add28f0eca6d34961dfc4ee | |
parent | b358015d5dc66e1c2de23f68aeb6b53d485f1365 (diff) |
media: video: tegra: fix miscdevice registeration nametegra-l4t-r17.1tegra-l4t-r17-17r1
Allocate driver name string in info struct, rather than passing
a pointer to a stack allocated array when registering a miscdevice.
This prevents 'cat /proc/misc' from dereferencing a dangling
pointer.
Drivers of following devices were updated - ad5816, as364x, dw9718,
imx091, max77387, max77665-flash, ov5693, ov9772, sh532u, ssl3250a
and tps61050.
Change-Id: I2344e6fefabdeda962ea33bc10803881e07ab3f0
Signed-off-by: Shreshtha Sahu <ssahu@nvidia.com>
Reviewed-on: http://git-master/r/256818
GVS: Gerrit_Virtual_Submit
Reviewed-by: Kiran Adduri <kadduri@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
-rw-r--r-- | drivers/media/video/tegra/ad5816.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/as364x.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/dw9718.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/imx091.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/max77387.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/max77665-flash.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/ov5693.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/ov9772.c | 15 | ||||
-rw-r--r-- | drivers/media/video/tegra/sh532u.c | 17 | ||||
-rw-r--r-- | drivers/media/video/tegra/ssl3250a.c | 17 | ||||
-rw-r--r-- | drivers/media/video/tegra/tps61050.c | 17 |
11 files changed, 91 insertions, 80 deletions
diff --git a/drivers/media/video/tegra/ad5816.c b/drivers/media/video/tegra/ad5816.c index bddd923c6a1f..5a9bd902b5c9 100644 --- a/drivers/media/video/tegra/ad5816.c +++ b/drivers/media/video/tegra/ad5816.c @@ -124,6 +124,7 @@ struct ad5816_info { int pwr_dev; s32 pos; u16 dev_id; + char devname[16]; }; /** @@ -777,7 +778,6 @@ static int ad5816_probe( const struct i2c_device_id *id) { struct ad5816_info *info; - char dname[16]; int err; dev_dbg(&client->dev, "%s\n", __func__); @@ -835,20 +835,21 @@ static int ad5816_probe( ad5816_sdata_init(info); if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "ad5816"); + strncpy(info->devname, "ad5816", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), - "%s.%u", dname, info->pdata->num); + snprintf(info->devname, sizeof(info->devname), + "%s.%u", info->devname, info->pdata->num); - info->miscdev.name = dname; + info->miscdev.name = info->devname; info->miscdev.fops = &ad5816_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(info->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); ad5816_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/as364x.c b/drivers/media/video/tegra/as364x.c index fc459fb364a2..49d86f04e50c 100644 --- a/drivers/media/video/tegra/as364x.c +++ b/drivers/media/video/tegra/as364x.c @@ -150,6 +150,7 @@ struct as364x_info { u8 led_num; u8 led_mask; bool shutdown_complete; + char devname[16]; }; static struct as364x_platform_data as364x_default_pdata = { @@ -1180,7 +1181,6 @@ static int as364x_probe( const struct i2c_device_id *id) { struct as364x_info *info; - char dname[16]; int err; dev_dbg(&client->dev, "%s\n", __func__); @@ -1234,19 +1234,20 @@ static int as364x_probe( __func__, info->regs.dev_id); if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "as364x"); + strncpy(info->devname, "as364x", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); - info->miscdev.name = dname; + info->miscdev.name = info->devname; info->miscdev.fops = &as364x_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); as364x_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/dw9718.c b/drivers/media/video/tegra/dw9718.c index b8a5988acd71..9557a5b0b1b2 100644 --- a/drivers/media/video/tegra/dw9718.c +++ b/drivers/media/video/tegra/dw9718.c @@ -127,6 +127,7 @@ struct dw9718_info { int status; u32 cur_pos; u8 s_mode; + char devname[16]; }; /** @@ -878,7 +879,6 @@ static int dw9718_probe( const struct i2c_device_id *id) { struct dw9718_info *info; - char dname[16]; int err; dev_dbg(&client->dev, "%s\n", __func__); pr_info("dw9718: probing focuser.\n"); @@ -929,20 +929,21 @@ static int dw9718_probe( } if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "dw9718"); + strncpy(info->devname, "dw9718", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), - "%s.%u", dname, info->pdata->num); + snprintf(info->devname, sizeof(info->devname), + "%s.%u", info->devname, info->pdata->num); - info->miscdev.name = dname; + info->miscdev.name = info->devname; info->miscdev.fops = &dw9718_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); dw9718_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/imx091.c b/drivers/media/video/tegra/imx091.c index 59cde73af54d..1321e0624b28 100644 --- a/drivers/media/video/tegra/imx091.c +++ b/drivers/media/video/tegra/imx091.c @@ -90,6 +90,7 @@ struct imx091_info { u16 i2c_reg; #endif struct nvc_fuseid fuse_id; + char devname[16]; }; struct imx091_reg { @@ -2817,7 +2818,6 @@ static int imx091_probe( const struct i2c_device_id *id) { struct imx091_info *info; - char dname[16]; unsigned long clock_probe_rate; int err; @@ -2880,18 +2880,19 @@ static int imx091_probe( imx091_edp_register(info); if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "imx091"); + strncpy(info->devname, "imx091", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &imx091_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); imx091_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/max77387.c b/drivers/media/video/tegra/max77387.c index cd9ab5718847..bb0d643e71c2 100644 --- a/drivers/media/video/tegra/max77387.c +++ b/drivers/media/video/tegra/max77387.c @@ -272,6 +272,7 @@ struct max77387_info { u8 ftimer_mode; u8 ttimer_mode; u8 new_timer; + char devname[16]; }; static const struct max77387_caps_struct max77387_caps = { @@ -1725,7 +1726,6 @@ static int max77387_probe( struct i2c_client *client, const struct i2c_device_id *id) { struct max77387_info *info; - char dname[16]; dev_info(&client->dev, "%s\n", __func__); @@ -1777,18 +1777,19 @@ static int max77387_probe( } if (info->pdata->dev_name != NULL) - strncpy(dname, info->pdata->dev_name, sizeof(dname)); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strncpy(dname, "max77387", sizeof(dname)); + strncpy(info->devname, "max77387", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &max77387_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); max77387_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/max77665-flash.c b/drivers/media/video/tegra/max77665-flash.c index 2feee300eb42..c6a2cf25da36 100644 --- a/drivers/media/video/tegra/max77665-flash.c +++ b/drivers/media/video/tegra/max77665-flash.c @@ -275,6 +275,7 @@ struct max77665_f_info { u8 ttimer_mode; u8 new_ftimer; u8 new_ttimer; + char devname[16]; }; static const struct max77665_f_caps_struct max77665_f_caps = { @@ -1550,7 +1551,6 @@ static int max77665_f_probe(struct platform_device *pdev) { struct max77665_f_info *info; struct max77665 *maxim; - char dname[16]; dev_info(&pdev->dev, "%s\n", __func__); @@ -1594,18 +1594,19 @@ static int max77665_f_probe(struct platform_device *pdev) mutex_init(&info->mutex); if (info->pdata->dev_name != NULL) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "max77665_f"); + strncpy(info->devname, "max77665_f", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &max77665_f_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&pdev->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); max77665_f_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/ov5693.c b/drivers/media/video/tegra/ov5693.c index 9caa165b5041..b1a6e28f4b2e 100644 --- a/drivers/media/video/tegra/ov5693.c +++ b/drivers/media/video/tegra/ov5693.c @@ -69,6 +69,7 @@ struct ov5693_info { struct regmap *regmap; struct regulator *ext_vcm_vdd; struct ov5693_cal_data cal; + char devname[16]; }; struct ov5693_reg { @@ -3247,7 +3248,6 @@ static int ov5693_probe( const struct i2c_device_id *id) { struct ov5693_info *info; - char dname[16]; unsigned long clock_probe_rate; int err; static struct regmap_config ad5823_regmap_config = { @@ -3319,19 +3319,20 @@ static int ov5693_probe( info->pdata->probe_clock(0); } if (info->pdata->dev_name != NULL) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "ov5693"); + strncpy(info->devname, "ov5693", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &ov5693_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; info->miscdev.parent = &client->dev; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); ov5693_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/ov9772.c b/drivers/media/video/tegra/ov9772.c index 9a312b8c489b..f8797c521316 100644 --- a/drivers/media/video/tegra/ov9772.c +++ b/drivers/media/video/tegra/ov9772.c @@ -201,6 +201,7 @@ struct ov9772_info { u8 i2c_buf[OV9772_SIZEOF_I2C_BUF]; u8 bin_en; struct nvc_fuseid fuse_id; + char devname[16]; }; struct ov9772_reg { @@ -2198,7 +2199,6 @@ static int ov9772_probe( const struct i2c_device_id *id) { struct ov9772_info *info; - char dname[16]; unsigned long clock_probe_rate; int err; @@ -2261,18 +2261,19 @@ static int ov9772_probe( info->pdata->probe_clock(0); } if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "ov9772"); + strncpy(info->devname, "ov9772", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &ov9772_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); ov9772_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/sh532u.c b/drivers/media/video/tegra/sh532u.c index b9ab1f096d9d..2e5fe05fd12b 100644 --- a/drivers/media/video/tegra/sh532u.c +++ b/drivers/media/video/tegra/sh532u.c @@ -1,7 +1,7 @@ /* * SH532U focuser driver. * - * Copyright (C) 2011-2012 NVIDIA Corporation. + * Copyright (C) 2011-2013 NVIDIA Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -163,6 +163,7 @@ struct sh532u_info { u32 pos_rel; s16 pos_abs; long pos_time_wr; + char devname[16]; }; static struct sh532u_pdata_info sh532u_default_info = { @@ -1966,7 +1967,6 @@ static int sh532u_probe( const struct i2c_device_id *id) { struct sh532u_info *info; - char dname[16]; int err; info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL); @@ -2013,18 +2013,19 @@ static int sh532u_probe( } if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "sh532u"); + strncpy(info->devname, "sh532u", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &sh532u_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); sh532u_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/ssl3250a.c b/drivers/media/video/tegra/ssl3250a.c index 2656138099e6..e36d2b36dd85 100644 --- a/drivers/media/video/tegra/ssl3250a.c +++ b/drivers/media/video/tegra/ssl3250a.c @@ -1,7 +1,7 @@ /* * ssl3250a.c - ssl3250a flash/torch kernel driver * - * Copyright (C) 2011 NVIDIA Corporation. + * Copyright (C) 2011-2013 NVIDIA Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -164,6 +164,7 @@ struct ssl3250a_info { struct nvc_regulator vreg_i2c; u8 s_mode; struct ssl3250a_info *s_info; + char devname[16]; }; static struct nvc_torch_pin_state ssl3250a_default_pinstate = { @@ -900,7 +901,6 @@ static int ssl3250a_probe( const struct i2c_device_id *id) { struct ssl3250a_info *info; - char dname[16]; int err; dev_dbg(&client->dev, "%s\n", __func__); @@ -937,18 +937,19 @@ static int ssl3250a_probe( } if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "ssl3250a"); + strncpy(info->devname, "ssl3250a", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &ssl3250a_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); ssl3250a_del(info); return -ENODEV; } diff --git a/drivers/media/video/tegra/tps61050.c b/drivers/media/video/tegra/tps61050.c index cc442324fdc7..b13111de1e7e 100644 --- a/drivers/media/video/tegra/tps61050.c +++ b/drivers/media/video/tegra/tps61050.c @@ -1,7 +1,7 @@ /* * tps61050.c - tps61050 flash/torch kernel driver * - * Copyright (C) 2011 NVIDIA Corporation. + * Copyright (C) 2011-2013 NVIDIA Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -145,6 +145,7 @@ struct tps61050_info { struct nvc_regulator vreg_i2c; u8 s_mode; struct tps61050_info *s_info; + char devname[16]; }; static struct nvc_torch_pin_state tps61050_default_pinstate = { @@ -904,7 +905,6 @@ static int tps61050_probe( const struct i2c_device_id *id) { struct tps61050_info *info; - char dname[16]; int err; dev_dbg(&client->dev, "%s\n", __func__); @@ -941,18 +941,19 @@ static int tps61050_probe( } if (info->pdata->dev_name != 0) - strcpy(dname, info->pdata->dev_name); + strncpy(info->devname, info->pdata->dev_name, + sizeof(info->devname) - 1); else - strcpy(dname, "tps61050"); + strncpy(info->devname, "tps61050", sizeof(info->devname) - 1); if (info->pdata->num) - snprintf(dname, sizeof(dname), "%s.%u", - dname, info->pdata->num); - info->miscdev.name = dname; + snprintf(info->devname, sizeof(info->devname), "%s.%u", + info->devname, info->pdata->num); + info->miscdev.name = info->devname; info->miscdev.fops = &tps61050_fileops; info->miscdev.minor = MISC_DYNAMIC_MINOR; if (misc_register(&info->miscdev)) { dev_err(&client->dev, "%s unable to register misc device %s\n", - __func__, dname); + __func__, info->devname); tps61050_del(info); return -ENODEV; } |