Re: [PATCH] Grow: fix possible memory leak.

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Dear Blazej,


Thank you for the patch.

Am 20.12.22 um 12:07 schrieb Blazej Kucman:

It’d be great, if you removed the dot/period at the end of the commit message.

Also, please elaborate on the memory leak in the commit message. Where was `mdi` allocated?

Signed-off-by: Blazej Kucman <blazej.kucman@xxxxxxxxx>
---
  Grow.c | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Grow.c b/Grow.c
index e362403a..b73ec2ae 100644
--- a/Grow.c
+++ b/Grow.c
@@ -432,6 +432,7 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
  			if (((disk.state & (1 << MD_DISK_WRITEMOSTLY)) == 0) &&
  			   (strcmp(s->bitmap_file, "clustered") == 0)) {
  				pr_err("%s disks marked write-mostly are not supported with clustered bitmap\n",devname);
+				free(mdi);
  				return 1;
  			}
  			fd2 = dev_open(dv, O_RDWR);
@@ -453,8 +454,10 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
  				pr_err("failed to load super-block.\n");
  			}
  			close(fd2);
-			if (rv)
+			if (rv) {
+				free(mdi);
  				return 1;
+			}
  		}
  		if (offset_setable) {
  			st->ss->getinfo_super(st, mdi, NULL);


Kind regards,

Paul



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