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-rw-r--r--fs/adfs/dir_f.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/adfs/dir_f.c b/fs/adfs/dir_f.c
index bbfc8625927..b9b2b27b68c 100644
--- a/fs/adfs/dir_f.c
+++ b/fs/adfs/dir_f.c
@@ -53,7 +53,7 @@ static inline int adfs_readname(char *buf, char *ptr, int maxlen)
{
char *old_buf = buf;
- while (*ptr >= ' ' && maxlen--) {
+ while ((unsigned char)*ptr >= ' ' && maxlen--) {
if (*ptr == '/')
*buf++ = '.';
else