do not save/restore errno around free() calls

[uclinux-h8/uClibc.git] / librt / shm.c

diff --git a/librt/shm.c b/librt/shm.c
index f0a9740..dd21324 100644 (file)
--- a/librt/shm.c
+++ b/librt/shm.c
@@ -25,8 +25,8 @@
  * Returns a malloc'ed buffer containing the OS specific path
  * to the shm filename or NULL upon failure.
  */
-static __attribute_noinline__ char* get_shm_name(const char*name) __nonnull((1));
-static char* get_shm_name(const char*name)
+static __attribute_noinline__ char* get_shm_name(const char *name) __nonnull((1));
+static char* get_shm_name(const char *name)
 {
        char *path;
        int i;
@@ -57,7 +57,7 @@ static char* get_shm_name(const char*name)
 
 int shm_open(const char *name, int oflag, mode_t mode)
 {
-       int fd, old_errno;
+       int fd;
        char *shm_name = get_shm_name(name);
 
        /* Stripped multiple '/' from start; may have set errno properly */
@@ -83,23 +83,19 @@ int shm_open(const char *name, int oflag, mode_t mode)
                //}
        }
 #endif
-       old_errno = errno;
-       free(shm_name);
-       errno = old_errno;
+       free(shm_name); /* doesn't affect errno */
        return fd;
 }
 
 int shm_unlink(const char *name)
 {
        char *shm_name = get_shm_name(name);
-       int ret, old_errno;
+       int ret;
 
        /* Stripped multiple '/' from start; may have set errno properly */
        if (shm_name == NULL)
                return -1;
        ret = unlink(shm_name);
-       old_errno = errno;
-       free(shm_name);
-       errno = old_errno;
+       free(shm_name); /* doesn't affect errno */
        return ret;
 }