Commit d12a8284 authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Thomas Gleixner
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bitmap: Define a cleanup function for bitmaps 



Add support for autopointers for bitmaps allocated with bitmap_alloc()
et al.

Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: default avatarYury Norov <yury.norov@gmail.com>
Link: https://lore.kernel.org/r/20240122124243.44002-2-brgl@bgdev.pl
parent 22653244

include/linux/bitmap.h

+3 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 


#include <linux/align.h>

#include <linux/bitops.h>

#include <linux/cleanup.h>

#include <linux/errno.h>

#include <linux/find.h>

#include <linux/limits.h>
@@ -127,6 +128,8 @@ unsigned long *bitmap_alloc_node(unsigned int nbits, gfp_t flags, int node); 
unsigned long *bitmap_zalloc_node(unsigned int nbits, gfp_t flags, int node);

void bitmap_free(const unsigned long *bitmap);



DEFINE_FREE(bitmap, unsigned long *, if (_T) bitmap_free(_T))



/* Managed variants of the above. */

unsigned long *devm_bitmap_alloc(struct device *dev,

				 unsigned int nbits, gfp_t flags);