diff options
| author | Ethan Tidmore <ethantidmore06@gmail.com> | 2026-02-15 22:04:38 -0600 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2026-02-17 10:04:28 +0100 |
| commit | 46120745bb4e7e1f09959624716b4c5d6e2c2e9e (patch) | |
| tree | c32d0177ec458d5e11bc6912f06d2209d0770148 | |
| parent | 9478c166c46934160135e197b049b5a05753f2ad (diff) | |
drm/tiny: sharp-memory: fix pointer error dereference
The function devm_drm_dev_alloc() returns a pointer error upon failure
not NULL. Change null check to pointer error check.
Detected by Smatch:
drivers/gpu/drm/tiny/sharp-memory.c:549 sharp_memory_probe() error:
'smd' dereferencing possible ERR_PTR()
Fixes: b8f9f21716fec ("drm/tiny: Add driver for Sharp Memory LCD")
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260216040438.43702-1-ethantidmore06@gmail.com
| -rw-r--r-- | drivers/gpu/drm/tiny/sharp-memory.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/tiny/sharp-memory.c b/drivers/gpu/drm/tiny/sharp-memory.c index 64272cd0f6e2..cbf69460ebf3 100644 --- a/drivers/gpu/drm/tiny/sharp-memory.c +++ b/drivers/gpu/drm/tiny/sharp-memory.c @@ -541,8 +541,8 @@ static int sharp_memory_probe(struct spi_device *spi) smd = devm_drm_dev_alloc(dev, &sharp_memory_drm_driver, struct sharp_memory_device, drm); - if (!smd) - return -ENOMEM; + if (IS_ERR(smd)) + return PTR_ERR(smd); spi_set_drvdata(spi, smd); |