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path: root/init/do_mounts.c
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Diffstat (limited to 'init/do_mounts.c')
-rw-r--r--init/do_mounts.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/init/do_mounts.c b/init/do_mounts.c
index eb410083e8e0..a95bbdb2a502 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -207,7 +207,7 @@ done:
* bangs.
*/
-dev_t name_to_dev_t(char *name)
+dev_t name_to_dev_t(const char *name)
{
char s[32];
char *p;
@@ -225,9 +225,11 @@ dev_t name_to_dev_t(char *name)
#endif
if (strncmp(name, "/dev/", 5) != 0) {
- unsigned maj, min;
+ unsigned maj, min, offset;
+ char dummy;
- if (sscanf(name, "%u:%u", &maj, &min) == 2) {
+ if ((sscanf(name, "%u:%u%c", &maj, &min, &dummy) == 2) ||
+ (sscanf(name, "%u:%u:%u:%c", &maj, &min, &offset, &dummy) == 3)) {
res = MKDEV(maj, min);
if (maj != MAJOR(res) || min != MINOR(res))
goto fail;
@@ -286,6 +288,7 @@ fail:
done:
return res;
}
+EXPORT_SYMBOL_GPL(name_to_dev_t);
static int __init root_dev_setup(char *line)
{