| Message ID | 20220413064618.23974-1-zhaojunkui2008@126.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/tegra: remove useless if check before kfree | expand |
On 4/13/22 09:46, Bernard Zhao wrote: > This patch remove useless if check before kfree. > > Signed-off-by: Bernard Zhao <zhaojunkui2008@126.com> > --- > drivers/gpu/drm/tegra/submit.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/tegra/submit.c b/drivers/gpu/drm/tegra/submit.c > index 6d6dd8c35475..54ac31bc80f6 100644 > --- a/drivers/gpu/drm/tegra/submit.c > +++ b/drivers/gpu/drm/tegra/submit.c > @@ -639,8 +639,7 @@ int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data, > kfree(job_data->used_mappings); > } > > - if (job_data) > - kfree(job_data); > + kfree(job_data); > put_bo: > gather_bo_put(&bo->base); > unlock: (Same comment as for other patch.) I personally dislike leaving the NULL checks off with calls to kfree. With the NULL check there, while reading the code it is obvious that the intention is that the value can be either a valid pointer or NULL. IMHO with C's type system/conventions we need this kind of contextual information to understand the code easily and avoid bugs. Mikko
diff --git a/drivers/gpu/drm/tegra/submit.c b/drivers/gpu/drm/tegra/submit.c index 6d6dd8c35475..54ac31bc80f6 100644 --- a/drivers/gpu/drm/tegra/submit.c +++ b/drivers/gpu/drm/tegra/submit.c @@ -639,8 +639,7 @@ int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data, kfree(job_data->used_mappings); } - if (job_data) - kfree(job_data); + kfree(job_data); put_bo: gather_bo_put(&bo->base); unlock:
This patch remove useless if check before kfree. Signed-off-by: Bernard Zhao <zhaojunkui2008@126.com> --- drivers/gpu/drm/tegra/submit.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)