hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/arm/malidp: Fix possible dereference of NULL 

There is possible deference of NULL pointer on return of
malidp_duplicate_plane_state() if kmalloc fails. Check the
returned kmalloc pointer before continuing.

Signed-off-by: Shailendra Verma <Shailendra.v@samsung.com>
[cleaned up the code and re-formatted the commit message]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Shailendra Verma 2016-11-11 13:35:00 +00:00 committed by Liviu Dudau
parent f0493e653f
commit 94d8b9b75c
1 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/gpu/drm/arm/malidp_planes.c
View File

@ -67,13 +67,14 @@ drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
return NULL;
state = kmalloc(sizeof(*state), GFP_KERNEL);
if (state) {
m_state = to_malidp_plane_state(plane->state);
__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
state->rotmem_size = m_state->rotmem_size;
state->format = m_state->format;
state->n_planes = m_state->n_planes;
}
if (!state)
return NULL;
m_state = to_malidp_plane_state(plane->state);
__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
state->rotmem_size = m_state->rotmem_size;
state->format = m_state->format;
state->n_planes = m_state->n_planes;
return &state->base;
}