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drivers/ramdisk: don't free memory for romdisk

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Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
This commit is contained in:
dongjiuzhu1
2023-04-08 16:22:26 +08:00
committed by Xiang Xiao
parent 9a22741e32
commit 9fdf36c17e
1 changed files with 5 additions and 2 deletions
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drivers/misc/ramdisk.c
+5 -2
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@@ -51,7 +51,7 @@
#define RDFLAG_USER (RDFLAG_WRENABLED | RDFLAG_FUNLINK) #define RDFLAG_USER (RDFLAG_WRENABLED | RDFLAG_FUNLINK)
#define RDFLAG_IS_WRENABLED(f) (((f) & RDFLAG_WRENABLED) != 0) #define RDFLAG_IS_WRENABLED(f) (((f) & RDFLAG_WRENABLED) != 0)
#define RDFLAG_IS_FUNLINK(f) (((f) & RDFLAG_WRENABLED) != 0) #define RDFLAG_IS_FUNLINK(f) (((f) & RDFLAG_FUNLINK) != 0)
/* Flag set when the RAM disk block driver is unlink */ /* Flag set when the RAM disk block driver is unlink */
@@ -143,7 +143,10 @@ static void rd_destroy(FAR struct rd_struct_s *dev)
{ {
/* Yes.. do it */ /* Yes.. do it */
kmm_free(dev->rd_buffer); if (dev->rd_flags & RDFLAG_USER)
{
kmm_free(dev->rd_buffer);
}
} }
/* And free the block driver itself */ /* And free the block driver itself */