git: 3f00a0678b9d - stable/13 - linprocfs: Properly reset error variable for mtab generation

[Michael Osipov]

The branch stable/13 has been updated by michaelo:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=3f00a0678b9de3657d859e590adb3e646aebb2ae

commit 3f00a0678b9de3657d859e590adb3e646aebb2ae
Author:     Michael Osipov <micha...@freebsd.org>
AuthorDate: 2024-12-02 13:25:45 +0000
Commit:     Michael Osipov <micha...@freebsd.org>
CommitDate: 2024-12-31 12:37:39 +0000

    linprocfs: Properly reset error variable for mtab generation
    
    Both functions linprocfs_domtab() and linprocfs_doprocmountinfo() are
    logically identical, but the former fails with ECANCELED because error
    is not reset after the for loop.
    
    Reviewed by:    jrm, fluffy
    MFC after:      2 weeks
    Differential Revision:  https://reviews.freebsd.org/D47865
    
    (cherry picked from commit 58c7db14cd71c41f59d80d26d921782c0c27d523)
---
 sys/compat/linprocfs/linprocfs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/compat/linprocfs/linprocfs.c b/sys/compat/linprocfs/linprocfs.c
index f8bbb0d8fbfc..0a471f684680 100644
--- a/sys/compat/linprocfs/linprocfs.c
+++ b/sys/compat/linprocfs/linprocfs.c
@@ -543,9 +543,7 @@ linprocfs_domtab(PFS_FILL_ARGS)
        error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count,
            UIO_SYSSPACE, MNT_WAIT);
        if (error != 0) {
-               free(buf, M_TEMP);
-               free(flep, M_TEMP);
-               return (error);
+               goto out;
        }
 
        for (sp = buf; count > 0; sp++, count--) {
@@ -565,6 +563,8 @@ linprocfs_domtab(PFS_FILL_ARGS)
                sbuf_printf(sb, " 0 0\n");
        }
 
+       error = 0;
+out:
        free(buf, M_TEMP);
        free(flep, M_TEMP);
        return (error);