[PATCH AUTOSEL 5.4 57/63] ALSA: hda: Add IRQ check for platform_get_irq()
From: Sasha Levin
Date: Fri Jul 09 2021 - 22:35:04 EST
From: Jiajun Cao <jjcao20@xxxxxxxxxxxx>
[ 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@xxxxxxxxxxxx>
Signed-off-by: Xin Tan <tanxin.ctf@xxxxxxxxx>
Reviewed-by: Thierry Reding <treding@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210622131947.94346-1-jjcao20@xxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 e378cb33c69d..2971b34c87c1 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -292,6 +292,9 @@ static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev)
const char *sname, *drv_name = "tegra-hda";
struct device_node *np = pdev->dev.of_node;
+ if (irq_id < 0)
+ return irq_id;
+
err = hda_tegra_init_chip(chip, pdev);
if (err)
return err;
--
2.30.2