pinctrl: mcp23s08: check return value of devm_kasprintf()

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[ Upstream commit f941714a7c ]

devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).

Fixes: 0f04a81784 ("pinctrl: mcp23s08: Split to three parts: core, I²C, SPI")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230621100409.1608395-1-claudiu.beznea@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Claudiu Beznea 2023-06-21 13:04:09 +03:00 • committed by Greg Kroah-Hartman

parent 7da44f84c4

commit 754bccefd6

1 changed files with 10 additions and 0 deletions

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drivers/pinctrl/pinctrl-mcp23s08_spi.c

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