diff options
| author | Anton Altaparmakov <aia21@cantab.net> | 2006-03-23 17:06:08 +0000 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2006-03-23 17:06:08 +0000 |
| commit | 92fe7b9ea8ef101bff3c75ade89b93b5f62a7955 (patch) | |
| tree | 3dba4faa78f1bbe4be503275173e3a63b5d60f22 /drivers/firmware/dcdbas.c | |
| parent | e750d1c7cc314b9ba1934b0b474b7d39f906f865 (diff) | |
| parent | b0e6e962992b76580f4900b166a337bad7c1e81b (diff) | |
Merge branch 'master' of /usr/src/ntfs-2.6/
Diffstat (limited to 'drivers/firmware/dcdbas.c')
| -rw-r--r-- | drivers/firmware/dcdbas.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c index 3a4e5c5b4e1f..d6543fc4a923 100644 --- a/drivers/firmware/dcdbas.c +++ b/drivers/firmware/dcdbas.c @@ -33,6 +33,7 @@ #include <linux/spinlock.h> #include <linux/string.h> #include <linux/types.h> +#include <linux/mutex.h> #include <asm/io.h> #include <asm/semaphore.h> @@ -48,7 +49,7 @@ static u8 *smi_data_buf; static dma_addr_t smi_data_buf_handle; static unsigned long smi_data_buf_size; static u32 smi_data_buf_phys_addr; -static DECLARE_MUTEX(smi_data_lock); +static DEFINE_MUTEX(smi_data_lock); static unsigned int host_control_action; static unsigned int host_control_smi_type; @@ -139,9 +140,9 @@ static ssize_t smi_data_buf_size_store(struct device *dev, buf_size = simple_strtoul(buf, NULL, 10); /* make sure SMI data buffer is at least buf_size */ - down(&smi_data_lock); + mutex_lock(&smi_data_lock); ret = smi_data_buf_realloc(buf_size); - up(&smi_data_lock); + mutex_unlock(&smi_data_lock); if (ret) return ret; @@ -154,7 +155,7 @@ static ssize_t smi_data_read(struct kobject *kobj, char *buf, loff_t pos, size_t max_read; ssize_t ret; - down(&smi_data_lock); + mutex_lock(&smi_data_lock); if (pos >= smi_data_buf_size) { ret = 0; @@ -165,7 +166,7 @@ static ssize_t smi_data_read(struct kobject *kobj, char *buf, loff_t pos, ret = min(max_read, count); memcpy(buf, smi_data_buf + pos, ret); out: - up(&smi_data_lock); + mutex_unlock(&smi_data_lock); return ret; } @@ -174,7 +175,7 @@ static ssize_t smi_data_write(struct kobject *kobj, char *buf, loff_t pos, { ssize_t ret; - down(&smi_data_lock); + mutex_lock(&smi_data_lock); ret = smi_data_buf_realloc(pos + count); if (ret) @@ -183,7 +184,7 @@ static ssize_t smi_data_write(struct kobject *kobj, char *buf, loff_t pos, memcpy(smi_data_buf + pos, buf, count); ret = count; out: - up(&smi_data_lock); + mutex_unlock(&smi_data_lock); return ret; } @@ -201,9 +202,9 @@ static ssize_t host_control_action_store(struct device *dev, ssize_t ret; /* make sure buffer is available for host control command */ - down(&smi_data_lock); + mutex_lock(&smi_data_lock); ret = smi_data_buf_realloc(sizeof(struct apm_cmd)); - up(&smi_data_lock); + mutex_unlock(&smi_data_lock); if (ret) return ret; @@ -302,7 +303,7 @@ static ssize_t smi_request_store(struct device *dev, unsigned long val = simple_strtoul(buf, NULL, 10); ssize_t ret; - down(&smi_data_lock); + mutex_lock(&smi_data_lock); if (smi_data_buf_size < sizeof(struct smi_cmd)) { ret = -ENODEV; @@ -334,7 +335,7 @@ static ssize_t smi_request_store(struct device *dev, } out: - up(&smi_data_lock); + mutex_unlock(&smi_data_lock); return ret; } |
