soc: aspeed: Add NULL check in aspeed_lpc_enable_snoop()

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[ Upstream commit f1706e0e1a ]

devm_kasprintf() returns NULL when memory allocation fails. Currently,
aspeed_lpc_enable_snoop() does not check for this case, which results in a
NULL pointer dereference.

Add NULL check after devm_kasprintf() to prevent this issue.

Fixes: 3772e5da44 ("drivers/misc: Aspeed LPC snoop output using misc chardev")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Link: https://patch.msgid.link/20250401074647.21300-1-bsdhenrymartin@gmail.com
[arj: Fix Fixes: tag to use subject from 3772e5da44]
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Henry Martin 2025-05-15 16:00:44 +09:30 • committed by Greg Kroah-Hartman

parent 7ce3063fd8

commit f697ef117e

1 changed files with 13 additions and 2 deletions

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drivers/soc/aspeed/aspeed-lpc-snoop.c

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