ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/libs/sysfsutils/patches/200-mnt_path_check.patch b/package/libs/sysfsutils/patches/200-mnt_path_check.patch
new file mode 100644
index 0000000..8710578
--- /dev/null
+++ b/package/libs/sysfsutils/patches/200-mnt_path_check.patch
@@ -0,0 +1,55 @@
+--- a/lib/sysfs_utils.c
++++ b/lib/sysfs_utils.c
+@@ -22,6 +22,7 @@
+ */
+ #include "libsysfs.h"
+ #include "sysfs.h"
++#include <mntent.h>
+
+ /**
+ * sysfs_remove_trailing_slash: Removes any trailing '/' in the given path
+@@ -53,6 +54,9 @@ int sysfs_get_mnt_path(char *mnt_path, s
+ {
+ static char sysfs_path[SYSFS_PATH_MAX] = "";
+ const char *sysfs_path_env;
++ FILE *mnt;
++ struct mntent *mntent;
++ int ret;
+
+ if (len == 0 || mnt_path == NULL)
+ return -1;
+@@ -64,12 +68,31 @@ int sysfs_get_mnt_path(char *mnt_path, s
+ if (sysfs_path_env != NULL) {
+ safestrcpymax(mnt_path, sysfs_path_env, len);
+ sysfs_remove_trailing_slash(mnt_path);
+- return 0;
++ } else {
++ safestrcpymax(mnt_path, SYSFS_MNT_PATH, len);
+ }
+- safestrcpymax(mnt_path, SYSFS_MNT_PATH, len);
+ }
+
+- return 0;
++ /* check that mount point is indeed mounted */
++ ret = -1;
++ if ((mnt = setmntent(SYSFS_PROC_MNTS, "r")) == NULL) {
++ dprintf("Error getting mount information\n");
++ return -1;
++ }
++ while ((mntent = getmntent(mnt)) != NULL) {
++ if (strcmp(mntent->mnt_type, SYSFS_FSTYPE_NAME) == 0 &&
++ strcmp(mntent->mnt_dir, mnt_path) == 0) {
++ ret = 0;
++ break;
++ }
++ }
++
++ endmntent(mnt);
++
++ if (ret < 0)
++ errno = ENOENT;
++
++ return ret;
+ }
+
+ /**