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authorChen Gong <gong.chen@linux.intel.com>2011-05-16 10:58:57 -0700
committerTony Luck <tony.luck@intel.com>2011-05-16 11:04:51 -0700
commit8d38d74b648513dd8ed8bd2b67d899208ef4e09e (patch)
tree9746a4273b2ffb68a298ce038eb196f0f65452bb /include/linux
parent693d92a1bbc9e42681c42ed190bd42b636ca876f (diff)
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pstore: fix one type of return value in pstore
the return type of function _read_ in pstore is size_t, but in the callback function of _read_, the logic doesn't consider it too much, which means if negative value (assuming error here) is returned, it will be converted to positive because of type casting. ssize_t is enough for this function. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pstore.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index 4197773..14ce2f5 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -35,7 +35,7 @@ struct pstore_info {
struct mutex buf_mutex; /* serialize access to 'buf' */
char *buf;
size_t bufsize;
- size_t (*read)(u64 *id, enum pstore_type_id *type,
+ ssize_t (*read)(u64 *id, enum pstore_type_id *type,
struct timespec *time);
u64 (*write)(enum pstore_type_id type, size_t size);
int (*erase)(u64 id);