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authorWei Yongjun <weiyongjun1@huawei.com>2021-02-24 01:38:03 +0000
committerTakashi Iwai <tiwai@suse.de>2021-02-25 10:29:13 +0100
commitc88fb897c1fb5a590dc6353ac4b01c8f46a347b3 (patch)
treebe4ff9ce88e52f0739789be18378c342613f3e89
parent10e2ec8edece2566b40f69bae035a555ece71ab4 (diff)
ALSA: n64: Fix return value check in n64audio_probe()
In case of error, the function devm_platform_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 1448f8acf4cc ("sound: Add n64 driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Lauri Kasanen <cand@gmx.com> Link: https://lore.kernel.org/r/20210224013803.2146953-1-weiyongjun1@huawei.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/mips/snd-n64.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/mips/snd-n64.c b/sound/mips/snd-n64.c
index ca6b4b99da98..e35e93157755 100644
--- a/sound/mips/snd-n64.c
+++ b/sound/mips/snd-n64.c
@@ -312,14 +312,14 @@ static int __init n64audio_probe(struct platform_device *pdev)
}
priv->mi_reg_base = devm_platform_ioremap_resource(pdev, 0);
- if (!priv->mi_reg_base) {
- err = -EINVAL;
+ if (IS_ERR(priv->mi_reg_base)) {
+ err = PTR_ERR(priv->mi_reg_base);
goto fail_dma_alloc;
}
priv->ai_reg_base = devm_platform_ioremap_resource(pdev, 1);
- if (!priv->ai_reg_base) {
- err = -EINVAL;
+ if (IS_ERR(priv->ai_reg_base)) {
+ err = PTR_ERR(priv->ai_reg_base);
goto fail_dma_alloc;
}