pinctrl: core: handle radix_tree_insert() errors in pinctrl_register_one_pin()

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commit ecfe9a015d upstream.

pinctrl_register_one_pin() doesn't check the result of radix_tree_insert()
despite they both may return a negative error code.  Linus Walleij said he
has copied the radix tree code from kernel/irq/ where the functions calling
radix_tree_insert() are *void* themselves; I think it makes more sense to
propagate the errors from radix_tree_insert() upstream if we can do that...

Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230719202253.13469-3-s.shtylyov@omp.ru
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: "Hemdan, Hagar Gamal Halim" <hagarhem@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Sergey Shtylyov 2023-07-19 23:22:52 +03:00 • committed by Greg Kroah-Hartman

parent 90cbd4c081

commit 026caf92c6

1 changed files with 11 additions and 3 deletions

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drivers/pinctrl/core.c

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