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qga: Plug unlikely memory leak in guest-set-memory-blocks 

transfer_memory_block() leaks an Error object when reading file
/sys/devices/system/memory/memory<INDEX>/state fails with errno other
than ENOENT, and @sys2memblk is false, i.e. when the state file exists
but cannot be read (seems quite unlikely), and this is
guest-set-memory-blocks, not guest-get-memory-blocks.

Plug the leak.

Fixes: bd240fca42
Cc: Michael Roth <mdroth@linux.vnet.ibm.com>
Cc: Hailiang Zhang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Message-Id: <20200630090351.1247703-9-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-06-30 11:03:33 +02:00
parent 14963c34b9
commit b368123dd9
1 changed files with 1 additions and 0 deletions
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1
qga/commands-posix.c
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@ -2421,6 +2421,7 @@ static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memblk,
if (sys2memblk) {
error_propagate(errp, local_err);
} else {
error_free(local_err);
result->response =
GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED;
}