fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe
authorZhang Shurong <zhang_shurong@foxmail.com>
Sat, 15 Jul 2023 08:16:56 +0000 (16:16 +0800)
committerHelge Deller <deller@gmx.de>
Thu, 20 Jul 2023 05:52:54 +0000 (07:52 +0200)
commit4e88761f5f8c7869f15a2046b1a1116f4fab4ac8
treed5016e4a1f126706e552b08d19639007096ef088
parent298e082558d86aa904486d087ce45d35c1122f1e
fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe

This func misses checking for platform_get_irq()'s call and may passes the
negative error codes to request_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.

Fix this by stop calling request_irq() with invalid IRQ #s.

Fixes: 1630d85a8312 ("au1200fb: fix hardcoded IRQ")
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
drivers/video/fbdev/au1200fb.c