Trying to losetup a device as a regular user shouldn't result in an endless

loop, and the error messages should display correctly now.

1 files changed, 3 insertions, 2 deletions

diff --git a/libbb/loop.c b/libbb/loop.c
index 00e3d6236..85aa37236 100644
--- a/libbb/loop.c
+++ b/libbb/loop.c
@@ -89,7 +89,7 @@ int set_loop(char **device, const char *file, int offset)
         char dev[20], *try;
         bb_loop_info loopinfo;
         struct stat statbuf;
-        int i, dfd, ffd, mode, rc=1;
+        int i, dfd, ffd, mode, rc=-1;
 
         /* Open the file.  Barf if this doesn't work.  */
         if((ffd = open(file, mode=O_RDWR))<0 && (ffd = open(file,mode=O_RDONLY))<0)
@@ -107,7 +107,7 @@ int set_loop(char **device, const char *file, int offset)
                 /* Open the sucker and check its loopiness.  */
                 if((dfd=open(try, mode))<0 && errno==EROFS)
                         dfd=open(try,mode=O_RDONLY);
-                if(dfd<0) continue;
+                if(dfd<0) goto try_again;
 
                 rc=ioctl(dfd, BB_LOOP_GET_STATUS, &loopinfo);
 
@@ -128,6 +128,7 @@ int set_loop(char **device, const char *file, int offset)
                 } else if(strcmp(file,loopinfo.lo_file_name)
                                         || offset!=loopinfo.lo_offset) rc=-1;
                 close(dfd);
+try_again:
                 if(*device) break;
         }
         close(ffd);