Make erofs_err() and erofs_info() support NULL sb parameter for more
general usage.

Suggested-by: Gao Xiang <[email protected]>
Signed-off-by: Chunhai Guo <[email protected]>
---
 fs/erofs/super.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 3789d6224513..5f60f163bd56 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -27,7 +27,10 @@ void _erofs_err(struct super_block *sb, const char *func, 
const char *fmt, ...)
        vaf.fmt = fmt;
        vaf.va = &args;
 
-       pr_err("(device %s): %s: %pV", sb->s_id, func, &vaf);
+       if (sb)
+               pr_err("(device %s): %s: %pV", sb->s_id, func, &vaf);
+       else
+               pr_err("%s: %pV", func, &vaf);
        va_end(args);
 }
 
@@ -41,7 +44,10 @@ void _erofs_info(struct super_block *sb, const char *func, 
const char *fmt, ...)
        vaf.fmt = fmt;
        vaf.va = &args;
 
-       pr_info("(device %s): %pV", sb->s_id, &vaf);
+       if (sb)
+               pr_info("(device %s): %pV", sb->s_id, &vaf);
+       else
+               pr_info("%pV", &vaf);
        va_end(args);
 }
 
-- 
2.25.1

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