The inline assembly in ep93xx_pata_delay() uses a "subs" instruction
which modifies the ARM condition code flags. Add a "cc" clobber so
the compiler knows the flags are altered. Without it, the compiler may
reorder flag-dependent instructions across the asm block when the
function is inlined, potentially causing incorrect control flow.

Fixes: 2fff27512600 ("PATA host controller driver for ep93xx")
Assisted-by: Opencode:Big-Pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 v2: add Fixes tag
 drivers/ata/pata_ep93xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index be8a314654e6..f149210b1454 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -211,6 +211,7 @@ static void ep93xx_pata_delay(unsigned long count)
 		"bge 0b\n"
 		: "=r" (count)
 		: "0" (count)
+		: "cc"
 	);
 #else
 	while (count--)
-- 
2.55.0