powerpc/ptrace: fix empty-body warning

In commit a225f1567405 ("powerpc/ptrace: replace ptrace_report_syscall() with a tracehook call") an empty body if(); was added.

Replace ; with {} to remove a warning (treated as error) reported by gcc using W=1:

arch/powerpc/kernel/ptrace.c: In function ‘do_syscall_trace_enter’:
arch/powerpc/kernel/ptrace.c:3281:4: error: suggest braces around empty body in an ‘if’ statement [-Werror=empty-body]

---
 arch/powerpc/kernel/ptrace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index 8314e8fed0ee..e1988892b3e7 100644
@@ -3277,8 +3277,8 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 		 * avoid clobbering any register also, thus, not 'gotoing'
 		 * skip label.
 		 */
-		if (tracehook_report_syscall_entry(regs))
-			;
+		if (tracehook_report_syscall_entry(regs)) {
+		}
 		return -1;
 	}
 

2.19.2

Hi Mathieu,

Thanks for the fix, but this code is being refactored already in next, see:

https://patchwork.ozlabs.org/patch/1014179/

cheers