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Fix memory leak in synth backend. 

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Merge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into staging

Fix memory leak in synth backend.

# gpg: Signature made Mon 19 Feb 2018 17:29:49 GMT
# gpg:                using RSA key 71D4D5E5822F73D6
# gpg: Good signature from "Greg Kurz <groug@kaod.org>"
# gpg:                 aka "Gregory Kurz <gregory.kurz@free.fr>"
# gpg:                 aka "[jpeg image of size 3330]"
# Primary key fingerprint: B482 8BAF 9431 40CE F2A3  4910 71D4 D5E5 822F 73D6

* remotes/gkurz/tags/for-upstream:
  9p: fix leak in synth_name_to_path()
  9p: v9fs_path_copy() readability

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-02-20 11:52:24 +00:00
parent f4718c033b 6ce7177ae2
commit b487e2b2ff
3 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
hw/9pfs/9p-synth.c
View File

@ -495,6 +495,7 @@ static int synth_name_to_path(FsContext *ctx, V9fsPath *dir_path,
}
out:
/* Copy the node pointer to fid */
g_free(target->data);
target->data = g_memdup(&node, sizeof(void *));
target->size = sizeof(void *);
return 0;

9
hw/9pfs/9p.c
View File

@ -190,12 +190,11 @@ v9fs_path_sprintf(V9fsPath *path, const char *fmt, ...)
va_end(ap);
}
void v9fs_path_copy(V9fsPath *lhs, V9fsPath *rhs)
void v9fs_path_copy(V9fsPath *dst, const V9fsPath *src)
{
v9fs_path_free(lhs);
lhs->data = g_malloc(rhs->size);
memcpy(lhs->data, rhs->data, rhs->size);
lhs->size = rhs->size;
v9fs_path_free(dst);
dst->size = src->size;
dst->data = g_memdup(src->data, src->size);
}
int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath,

2
hw/9pfs/9p.h
View File

@ -343,7 +343,7 @@ void coroutine_fn v9fs_reclaim_fd(V9fsPDU *pdu);
void v9fs_path_init(V9fsPath *path);
void v9fs_path_free(V9fsPath *path);
void v9fs_path_sprintf(V9fsPath *path, const char *fmt, ...);
void v9fs_path_copy(V9fsPath *lhs, V9fsPath *rhs);
void v9fs_path_copy(V9fsPath *dst, const V9fsPath *src);
int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath,
const char *name, V9fsPath *path);
int v9fs_device_realize_common(V9fsState *s, const V9fsTransport *t,