diff options
Diffstat (limited to 'fs/isofs/rock.c')
| -rw-r--r-- | fs/isofs/rock.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c index e981c040a49..8497c6bd567 100644 --- a/fs/isofs/rock.c +++ b/fs/isofs/rock.c @@ -22,12 +22,21 @@ #define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */ -/* This is a way of ensuring that we have something in the system - use fields that is compatible with Rock Ridge */ -#define CHECK_SP(FAIL) \ - if(rr->u.SP.magic[0] != 0xbe) FAIL; \ - if(rr->u.SP.magic[1] != 0xef) FAIL; \ - ISOFS_SB(inode->i_sb)->s_rock_offset=rr->u.SP.skip; +/* + * This is a way of ensuring that we have something in the system + * use fields that is compatible with Rock Ridge. Return zero on success. + */ + +static int check_sp(struct rock_ridge *rr, struct inode *inode) +{ + if (rr->u.SP.magic[0] != 0xbe) + return -1; + if (rr->u.SP.magic[1] != 0xef) + return -1; + ISOFS_SB(inode->i_sb)->s_rock_offset = rr->u.SP.skip; + return 0; +} + /* We define a series of macros because each function must do exactly the same thing in certain places. We use the macros to ensure that everything is done correctly */ @@ -118,7 +127,8 @@ repeat: goto out; break; case SIG('S', 'P'): - CHECK_SP(goto out); + if (check_sp(rr, inode)) + goto out; break; case SIG('C', 'E'): CHECK_CE; @@ -212,7 +222,8 @@ repeat: break; #endif case SIG('S', 'P'): - CHECK_SP(goto out); + if (check_sp(rr, inode)) + goto out; break; case SIG('C', 'E'): CHECK_CE; @@ -570,7 +581,8 @@ repeat: goto out; break; case SIG('S', 'P'): - CHECK_SP(goto out); + if (check_sp(rr, inode)) + goto out; break; case SIG('S', 'L'): rpnt = get_symlink_chunk(rpnt, rr, |