[tip: x86/cleanups] x86/ioperm: Initialize pointer bitmap with NULL rather than 0

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The following commit has been merged into the x86/cleanups branch of tip:

Commit-ID:     90fc73928fec2f62bbee1476781754c7392a7b61
Gitweb:        https://git.kernel.org/tip/90fc73928fec2f62bbee1476781754c7392a7b61
Author:        Colin Ian King <colin.king@xxxxxxxxxxxxx>
AuthorDate:    Tue, 21 Jul 2020 11:02:17 +01:00
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Sun, 26 Jul 2020 19:52:55 +02:00

x86/ioperm: Initialize pointer bitmap with NULL rather than 0

The pointer bitmap is being initialized with a plain integer 0,
fix this by initializing it with a NULL instead.

Cleans up sparse warning:
arch/x86/xen/enlighten_pv.c:876:27: warning: Using plain integer
as NULL pointer

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Link: https://lore.kernel.org/r/20200721100217.407975-1-colin.king@xxxxxxxxxxxxx
---
 arch/x86/xen/enlighten_pv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index c46b9f2..2aab43a 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -873,7 +873,7 @@ static void xen_load_sp0(unsigned long sp0)
 static void xen_invalidate_io_bitmap(void)
 {
 	struct physdev_set_iobitmap iobitmap = {
-		.bitmap = 0,
+		.bitmap = NULL,
 		.nr_ports = 0,
 	};
 



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