Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 806/879] lib/string_helpers: fix not adding strarray to devices resource list | Date | Tue, 7 Jun 2022 19:05:24 +0200 |
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From: Puyou Lu <puyou.lu@gmail.com>
commit cd290a9839cee2f6641558877e707bd373c8f6f1 upstream.
Add allocated strarray to device's resource list. This is a must to automatically release strarray when the device disappears.
Without this fix we have a memory leak in the few drivers which use devm_kasprintf_strarray().
Link: https://lkml.kernel.org/r/20220506044409.30066-1-puyou.lu@gmail.com Link: https://lkml.kernel.org/r/20220506073623.2679-1-puyou.lu@gmail.com Fixes: acdb89b6c87a ("lib/string_helpers: Introduce managed variant of kasprintf_strarray()") Signed-off-by: Puyou Lu <puyou.lu@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Tejun Heo <tj@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- lib/string_helpers.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/lib/string_helpers.c +++ b/lib/string_helpers.c @@ -757,6 +757,9 @@ char **devm_kasprintf_strarray(struct de return ERR_PTR(-ENOMEM); } + ptr->n = n; + devres_add(dev, ptr); + return ptr->array; } EXPORT_SYMBOL_GPL(devm_kasprintf_strarray);
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