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block: Fix leak in bdrv_create_file_fallback()

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@options is leaked by the first two return statements in this function.

Note that blk_new_open() takes the reference to @options even on
failure, so all we need to do to fix the leak is to move the QDict
allocation down to where we actually need it.

Reported-by: Coverity (CID 1419884)
Fixes: fd17146cd9
       ("block: Generic file creation fallback")
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200225155618.133412-1-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz
2020-03-06 17:15:37 +01:00
committed by Kevin Wolf
parent 81311255f2
commit eeea1faa09
1 changed files with 2 additions and 1 deletions
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block.c
+2 -1
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@@ -600,7 +600,7 @@ static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
QemuOpts *opts, Error **errp)
{
BlockBackend *blk;
QDict *options = qdict_new();
QDict *options;
int64_t size = 0;
char *buf = NULL;
PreallocMode prealloc;
@@ -623,6 +623,7 @@ static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
return -ENOTSUP;
}
options = qdict_new();
qdict_put_str(options, "driver", drv->format_name);
blk = blk_new_open(filename, NULL, options,