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drm/panthor: return error on truncated firmware

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panthor_fw_load() detects truncated firmware images, but jumps to the
common cleanup path without setting ret. If no previous error was recorded,
the function can return 0 and treat the invalid firmware as successfully
loaded.

Set ret to -EINVAL before leaving the truncated-image path.

Fixes: 2718d91816 ("drm/panthor: Add the FW logical block")
Cc: stable@vger.kernel.org
Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patch.msgid.link/20260714163056.22329-1-osama.abdelkader@gmail.com
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Osama Abdelkader 2026-07-14 18:30:55 +02:00 committed by Liviu Dudau
parent 5b7b3b6595
commit 4a2c8cbe9b
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/panthor/panthor_fw.c
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@ -829,6 +829,7 @@ static int panthor_fw_load(struct panthor_device *ptdev)
}
if (hdr.size > iter.size) {
ret = -EINVAL;
drm_err(&ptdev->base, "Firmware image is truncated\n");
goto out;
}