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| author | Pei Xiao <xiaopei01@kylinos.cn> | 2026-03-12 05:47:55 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-03-12 14:28:31 +0300 |
| commit | 869d5b4b2a8012f6ef6058a1055cac6922c2cb55 (patch) | |
| tree | 42a2ca130e8676defe2767a5b46106d86869b967 /include | |
| parent | 97545e37234fdbe457f5104a09f55033550b3d84 (diff) | |
| download | linux-869d5b4b2a8012f6ef6058a1055cac6922c2cb55.tar.xz | |
spi: atcspi200: fix mutex initialization order
The atcspi_exec_mem_op() function may call mutex_lock() on the
driver's mutex before it is properly initialized if a SPI memory
operation is initiated immediately after devm_spi_register_controller()
is called. The mutex initialization currently occurs after the
controller registration, which leaves a window where the mutex could
be used uninitialized.
Move the mutex initialization to the beginning of the probe function,
before any registration or resource allocation.
Fixes: 34e3815ea459 ("spi: atcspi200: Add ATCSPI200 SPI controller driver")
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Link: https://patch.msgid.link/15a71241affc25108a97d40d9d3dd1bc3d2d69ed.1773282905.git.xiaopei01@kylinos.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions