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drm/vkms: fix variable dereferenced before check warning
Smatch warns:
drivers/gpu/drm/vkms/vkms_plane.c:110 vkms_plane_atomic_update() warn:
variable dereferenced before check 'fb' (see line 108)
Fix the warning by moving the dereference after the NULL check.
Fixes: 8ba1648567
("drm: vkms: Refactor the plane composer to accept new formats")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908105623.72777-1-harshit.m.mogalapalli@oracle.com
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1 changed files with 2 additions and 1 deletions
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@ -105,11 +105,12 @@ static void vkms_plane_atomic_update(struct drm_plane *plane,
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struct drm_shadow_plane_state *shadow_plane_state;
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struct drm_framebuffer *fb = new_state->fb;
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struct vkms_frame_info *frame_info;
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u32 fmt = fb->format->format;
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u32 fmt;
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if (!new_state->crtc || !fb)
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return;
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fmt = fb->format->format;
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vkms_plane_state = to_vkms_plane_state(new_state);
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shadow_plane_state = &vkms_plane_state->base;
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