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| author | Markus Armbruster <armbru@redhat.com> | 2022-03-15 15:41:55 +0100 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2022-03-21 15:44:44 +0100 |
| commit | 1366244ab6d0c83bf0f90270e5bb608651a3cc8f (patch) | |
| tree | e315609c3297e701b93bff8e7d5fd7bcaf3e94c5 /hw/9pfs/9p-synth.c | |
| parent | 15ba4a9f7ba592f2f1a0eb50b20f0ebd4412ab6e (diff) | |
| download | qemu-1366244ab6d0c83bf0f90270e5bb608651a3cc8f.zip qemu-1366244ab6d0c83bf0f90270e5bb608651a3cc8f.tar.gz qemu-1366244ab6d0c83bf0f90270e5bb608651a3cc8f.tar.bz2 | |
9pfs: Use g_new() & friends where that makes obvious sense
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer,
for two reasons. One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.
This commit only touches allocations with size arguments of the form
sizeof(T).
Initial patch created mechanically with:
$ spatch --in-place --sp-file scripts/coccinelle/use-g_new-etc.cocci \
--macro-file scripts/cocci-macro-file.h FILES...
This uncovers a typing error:
../hw/9pfs/9p.c: In function ‘qid_path_fullmap’:
../hw/9pfs/9p.c:855:13: error: assignment to ‘QpfEntry *’ from incompatible pointer type ‘QppEntry *’ [-Werror=incompatible-pointer-types]
855 | val = g_new0(QppEntry, 1);
| ^
Harmless, because QppEntry is larger than QpfEntry. Manually fixed to
allocate a QpfEntry instead.
Cc: Greg Kurz <groug@kaod.org>
Cc: Christian Schoenebeck <qemu_oss@crudebyte.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20220315144156.1595462-3-armbru@redhat.com>
Diffstat (limited to 'hw/9pfs/9p-synth.c')
| -rw-r--r-- | hw/9pfs/9p-synth.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/9pfs/9p-synth.c b/hw/9pfs/9p-synth.c index b3080e4..d99d263 100644 --- a/hw/9pfs/9p-synth.c +++ b/hw/9pfs/9p-synth.c @@ -49,7 +49,7 @@ static V9fsSynthNode *v9fs_add_dir_node(V9fsSynthNode *parent, int mode, /* Add directory type and remove write bits */ mode = ((mode & 0777) | S_IFDIR) & ~(S_IWUSR | S_IWGRP | S_IWOTH); - node = g_malloc0(sizeof(V9fsSynthNode)); + node = g_new0(V9fsSynthNode, 1); if (attr) { /* We are adding .. or . entries */ node->attr = attr; @@ -128,7 +128,7 @@ int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode, } /* Add file type and remove write bits */ mode = ((mode & 0777) | S_IFREG); - node = g_malloc0(sizeof(V9fsSynthNode)); + node = g_new0(V9fsSynthNode, 1); node->attr = &node->actual_attr; node->attr->inode = synth_node_count++; node->attr->nlink = 1; |