[PATCH] arch: blackfin: kernel: sprintf(), need avoid NUL for '%s'

[Chen Gang]

When it is kernel symbol, the 'modname' will be NUL, and the 'symname'
contents the valid name.

So for sprintf(), need avoid NUL for '%s'.


Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx>
---
 arch/blackfin/kernel/trace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index c36efa0..11f98bb 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -51,7 +51,7 @@ void decode_address(char *buf, unsigned long address)
 		if (!modname)
 			modname = delim = "";
 		sprintf(buf, "{ %s%s%s%s + 0x%lx }",
-			delim, modname, delim, symname,
+			delim, modname ? : "kernel", delim, symname,
 			(unsigned long)offset);
 		return;
 	}
-- 
1.7.7.6
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