arch/um: remove unused varible err in remove_files_and_dir()

err is duplicated with errno, and never used; remove it.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alex Shi <alexs@kernel.org>
Link: https://patch.msgid.link/20260107064009.15380-1-alexs@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index eb523ab1e2189be26c92e607761a7df6fd88b363..6b488be2c545e590fe90a505f6c046fc8b512646 100644 (file)
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -136,7 +136,7 @@ out:
 static inline int is_umdir_used(char *dir)
 {
        char pid[sizeof("nnnnnnnnn")], *end, *file;
-       int fd, p, n, err;
+       int fd, p, n;
        size_t filelen = strlen(dir) + sizeof("/pid") + 1;
 
        file = malloc(filelen);
@@ -155,7 +155,6 @@ static inline int is_umdir_used(char *dir)
                goto out;
        }
 
-       err = 0;
        n = read(fd, pid, sizeof(pid));
        if (n < 0) {
                printk(UM_KERN_ERR "is_umdir_used : couldn't read pid file "