git: 596030c13dce - releng/15.1 - zvol: Fix uses of uninitialized variables in zvol_rename_minors_impl()

The branch releng/15.1 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=596030c13dce638f3cbaf89b19988f64f677cee5

commit 596030c13dce638f3cbaf89b19988f64f677cee5
Author:     Mark Johnston <[email protected]>
AuthorDate: 2026-02-12 22:10:36 +0000
Commit:     Mark Johnston <[email protected]>
CommitDate: 2026-07-28 15:16:03 +0000

    zvol: Fix uses of uninitialized variables in zvol_rename_minors_impl()
    
    Reported-by: GitHub Copilot
    Reviewed-by: Brian Behlendorf <[email protected]>
    Reviewed-by: Alexander Motin <[email protected]>
    Signed-off-by: Mark Johnston <[email protected]>
    Closes #18191
    
    Approved by:    so
    Security:       FreeBSD-EN-26:19.zfs
    
    (cherry picked from commit 943a05528494b2f4585541089606796476fb229e)
    (cherry picked from commit 698e0c419895da2d0d12c5f4d61d85a1d91b6b9d)
---
 sys/contrib/openzfs/module/zfs/zvol.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/contrib/openzfs/module/zfs/zvol.c b/sys/contrib/openzfs/module/zfs/zvol.c
index b35817f5c830..12f87c870eac 100644
--- a/sys/contrib/openzfs/module/zfs/zvol.c
+++ b/sys/contrib/openzfs/module/zfs/zvol.c
@@ -1762,6 +1762,7 @@ zvol_rename_minors_impl(zvol_task_t *task)
 	if (zvol_inhibit_dev)
 		return;
 
+	last_error = 0;
 	oldnamelen = strlen(oldname);
 
 	rw_enter(&zvol_state_lock, RW_WRITER);
@@ -1781,6 +1782,8 @@ zvol_rename_minors_impl(zvol_task_t *task)
 			    zv->zv_name + oldnamelen + 1);
 			error = zvol_os_rename_minor(zv, name);
 			kmem_strfree(name);
+		} else {
+			error = 0;
 		}
 		if (error) {
 			last_error = error;