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Subject[PATCH AUTOSEL 4.9 23/26] ALSA: hda: Add IRQ check for platform_get_irq()
Date
From: Jiajun Cao <jjcao20@fudan.edu.cn>

[ Upstream commit 8c13212443230d03ff25014514ec0d53498c0912 ]

The function hda_tegra_first_init() neglects to check the return
value after executing platform_get_irq().

hda_tegra_first_init() should check the return value (if negative
error number) for errors so as to not pass a negative value to
the devm_request_irq().

Fix it by adding a check for the return value irq_id.

Signed-off-by: Jiajun Cao <jjcao20@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20210622131947.94346-1-jjcao20@fudan.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/pci/hda/hda_tegra.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index e85fb04ec7be..b567c4bdae00 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -363,6 +363,9 @@ static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev)
unsigned short gcap;
int irq_id = platform_get_irq(pdev, 0);

+ if (irq_id < 0)
+ return irq_id;
+
err = hda_tegra_init_chip(chip, pdev);
if (err)
return err;
--
2.30.2
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