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Input: ipaq-micro-keys - add error handling for devm_kmemdup

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[ Upstream commit 59b6a747e2d39227ac2325c5e29d6ab3bb070c2a ]

Check the return value of i2c_add_adapter. Static analysis revealed that
the function did not properly handle potential failures of
i2c_add_adapter, which could lead to partial initialization of the I2C
adapter and unstable operation.

Signed-off-by: Haoran Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Fixes: d7535ffa42 ("Input: driver for microcontroller keys on the iPaq h3xxx")
Signed-off-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Haoran Liu 2023-12-03 19:00:23 +00:00 • committed by Greg Kroah-Hartman
commit e1b31edfe7
1 changed files with 3 additions and 0 deletions
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3
drivers/input/keyboard/ipaq-micro-keys.c
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@ -105,6 +105,9 @@ static int micro_key_probe(struct platform_device *pdev)
keys->codes = devm_kmemdup(&pdev->dev, micro_keycodes,
keys->input->keycodesize * keys->input->keycodemax,
GFP_KERNEL);
if (!keys->codes)
return -ENOMEM;
keys->input->keycode = keys->codes;
__set_bit(EV_KEY, keys->input->evbit);