[PATCH 1/2] ARM pbl: Provide a dummy error function for the decompressor

[Sascha Hauer]

We can't do anything useful in the error function, so we just hang.
This has the advantage that at least when a JTAG debugger is connected
we can see what happens. Otherwise the code just jumps to NULL in case
of an error.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/cpu/start-pbl.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/start-pbl.c b/arch/arm/cpu/start-pbl.c
index 932a3da..2cd33ce 100644
--- a/arch/arm/cpu/start-pbl.c
+++ b/arch/arm/cpu/start-pbl.c
@@ -113,6 +113,11 @@ static void mmu_disable(void)
 	__mmu_cache_off();
 }
 
+void noinline errorfn(char *error)
+{
+	while (1);
+}
+
 static void barebox_uncompress(void *compressed_start, unsigned int len)
 {
 	void (*barebox)(void);
@@ -135,7 +140,7 @@ static void barebox_uncompress(void *compressed_start, unsigned int len)
 	decompress((void *)compressed_start,
 			len,
 			NULL, NULL,
-			(void *)TEXT_BASE, NULL, NULL);
+			(void *)TEXT_BASE, NULL, errorfn);
 
 	if (use_mmu)
 		mmu_disable();
-- 
1.7.10.4