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authorLinus Walleij <linus.walleij@linaro.org>2024-10-28 23:06:53 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-12-05 14:01:51 +0100
commit67c914f2d64b28409796a6b9036c131e93f8af6c (patch)
tree74997e4ddc9eb4bf24167f4ddddeec5f20cbae99
parent214fc7bf37c5f4f21f814f7f671b2521fc467985 (diff)
wifi: cw1200: Fix potential NULL dereference
[ Upstream commit 2b94751626a6d49bbe42a19cc1503bd391016bd5 ] A recent refactoring was identified by static analysis to cause a potential NULL dereference, fix this! Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/202410121505.nyghqEkK-lkp@intel.com/ Fixes: 2719a9e7156c ("wifi: cw1200: Convert to GPIO descriptors") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://patch.msgid.link/20241028-cw1200-fix-v1-1-e092b6558d1e@linaro.org Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/wireless/st/cw1200/cw1200_spi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/st/cw1200/cw1200_spi.c b/drivers/net/wireless/st/cw1200/cw1200_spi.c
index 4f346fb977a9..862964a8cc87 100644
--- a/drivers/net/wireless/st/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/st/cw1200/cw1200_spi.c
@@ -450,7 +450,7 @@ static int __maybe_unused cw1200_spi_suspend(struct device *dev)
{
struct hwbus_priv *self = spi_get_drvdata(to_spi_device(dev));
- if (!cw1200_can_suspend(self->core))
+ if (self && !cw1200_can_suspend(self->core))
return -EAGAIN;
/* XXX notify host that we have to keep CW1200 powered on? */