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[media] v4l: omap_vout: Don't free buffers if they haven't been allocated

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The VRFB buffers are freed when the device is closed even if they
haven't been allocated by a call to VIDIOC_REQBUFS, resulting in a
crash. Fix it by not trying to free buffers that are not allocated.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Laurent Pinchart 2015-11-10 08:20:19 -02:00 committed by Mauro Carvalho Chehab
parent cd1e11bed2
commit b446631c5a
1 changed files with 6 additions and 4 deletions
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10
drivers/media/platform/omap/omap_vout_vrfb.c
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@ -79,10 +79,12 @@ void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout)
int j;
for (j = 0; j < VRFB_NUM_BUFS; j++) {
omap_vout_free_buffer(vout->smsshado_virt_addr[j],
vout->smsshado_size);
vout->smsshado_virt_addr[j] = 0;
vout->smsshado_phy_addr[j] = 0;
if (vout->smsshado_virt_addr[j]) {
omap_vout_free_buffer(vout->smsshado_virt_addr[j],
vout->smsshado_size);
vout->smsshado_virt_addr[j] = 0;
vout->smsshado_phy_addr[j] = 0;
}
}
}