nandwrite: Utilize Standard Exit Mnemonics

Replace main exit and return status codes with equivalent mnemonics.

Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>

diff --git a/nandwrite.c b/nandwrite.c
index 8e0609da580bd72ad6426f93dbb9116aa4053d75..b1a4307e222529c11d1cafc4cb33ed871ccb9de8 100644 (file)
--- a/nandwrite.c
+++ b/nandwrite.c
@@ -103,7 +103,7 @@ static void display_version (void)
                        "You may redistribute copies of " PROGRAM "\n"
                        "under the terms of the GNU General Public Licence.\n"
                        "See the file `COPYING' for more information.\n");
-       exit(0);
+       exit (EXIT_SUCCESS);
 }
 
 static const char      *mtd_device, *img;
@@ -225,20 +225,20 @@ int main(int argc, char * const argv[])
 
        if (pad && writeoob) {
                fprintf(stderr, "Can't pad when oob data is present.\n");
-               exit(1);
+               exit (EXIT_FAILURE);
        }
 
        /* Open the device */
        if ((fd = open(mtd_device, O_RDWR)) == -1) {
                perror("open flash");
-               exit(1);
+               exit (EXIT_FAILURE);
        }
 
        /* Fill in MTD device capability structure */
        if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
                perror("MEMGETINFO");
                close(fd);
-               exit(1);
+               exit (EXIT_FAILURE);
        }
 
        /* Set erasesize to specified number of blocks - to match jffs2
@@ -252,7 +252,7 @@ int main(int argc, char * const argv[])
                        !(meminfo.oobsize == 128 && meminfo.writesize == 4096)) {
                fprintf(stderr, "Unknown flash (not normal NAND)\n");
                close(fd);
-               exit(1);
+               exit (EXIT_FAILURE);
        }
 
        if (autoplace) {
@@ -260,7 +260,7 @@ int main(int argc, char * const argv[])
                if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) {
                        perror ("MEMGETOOBSEL");
                        close (fd);
-                       exit (1);
+                       exit (EXIT_FAILURE);
                }
 
                // autoplace ECC ?
@@ -269,7 +269,7 @@ int main(int argc, char * const argv[])
                        if (ioctl (fd, MEMSETOOBSEL, &autoplace_oobinfo) != 0) {
                                perror ("MEMSETOOBSEL");
                                close (fd);
-                               exit (1);
+                               exit (EXIT_FAILURE);
                        }
                        oobinfochanged = 1;
                }
@@ -285,19 +285,19 @@ int main(int argc, char * const argv[])
                                if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) {
                                        perror ("MEMGETOOBSEL");
                                        close (fd);
-                                       exit (1);
+                                       exit (EXIT_FAILURE);
                                }
                                if (ioctl (fd, MEMSETOOBSEL, &none_oobinfo) != 0) {
                                        perror ("MEMSETOOBSEL");
                                        close (fd);
-                                       exit (1);
+                                       exit (EXIT_FAILURE);
                                }
                                oobinfochanged = 1;
                                break;
                        default:
                                perror ("MTDFILEMODE");
                                close (fd);
-                               exit (1);
+                               exit (EXIT_FAILURE);
                        }
                }
        }
@@ -506,7 +506,7 @@ restoreoob:
                if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) {
                        perror ("MEMSETOOBSEL");
                        close (fd);
-                       exit (1);
+                       exit (EXIT_FAILURE);
                }
        }
 
@@ -514,9 +514,9 @@ restoreoob:
 
        if (imglen > 0) {
                perror ("Data was only partially written due to error\n");
-               exit (1);
+               exit (EXIT_FAILURE);
        }
 
        /* Return happy */
-       return 0;
+       return EXIT_SUCCESS;
 }