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[v3,03/20] devres: Introduce devm_kmemdup_array()

Message ID 20250203080902.1864382-4-raag.jadav@intel.com (mailing list archive)
State New
Headers show
Series Split devres APIs to device/devres.h and introduce devm_kmemdup_array() | expand

Commit Message

Raag Jadav Feb. 3, 2025, 8:08 a.m. UTC 
Introduce '_array' variant of devm_kmemdup() which is more robust and
consistent with alloc family of helpers.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/linux/device/devres.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/linux/device/devres.h b/include/linux/device/devres.h
index 128d65defafc..6ef400abfe21 100644
--- a/include/linux/device/devres.h
+++ b/include/linux/device/devres.h
@@ -79,6 +79,11 @@  void devm_kfree(struct device *dev, const void *p);
 
 void * __realloc_size(3)
 devm_kmemdup(struct device *dev, const void *src, size_t len, gfp_t gfp);
+static inline void *devm_kmemdup_array(struct device *dev, const void *src,
+				       size_t n, size_t size, gfp_t flags)
+{
+	return devm_kmemdup(dev, src, size_mul(size, n), flags);
+}
 
 char * __malloc
 devm_kstrdup(struct device *dev, const char *s, gfp_t gfp);