[PATCH]->[PATCH v2] kgdb: Removed kmalloc returned value cast

[Alex Grad]

While at it, check kmalloc return value.

Signed-off-by: Alex Grad <alex.grad at gmail.com>
---
 arch/powerpc/kernel/kgdb.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index 5ca82cd..9e81dd8 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -159,7 +159,10 @@ static int kgdb_singlestep(struct pt_regs *regs)
 	if (user_mode(regs))
 		return 0;
 
-	backup_current_thread_info = (struct thread_info *)kmalloc(sizeof(struct thread_info), GFP_KERNEL);
+	backup_current_thread_info = kmalloc(sizeof(struct thread_info), GFP_KERNEL);
+	if (!backup_current_thread_info)
+		return -ENOMEM;
+
 	/*
 	 * On Book E and perhaps other processors, singlestep is handled on
 	 * the critical exception stack.  This causes current_thread_info()
-- 
1.7.10.4