* [PATCH] powerpc/xive: Add missing null check after calling kmalloc
@ 2021-12-26 13:54 Ammar Faizi
2022-01-03 6:41 ` Cédric Le Goater
0 siblings, 1 reply; 2+ messages in thread
From: Ammar Faizi @ 2021-12-26 13:54 UTC (permalink / raw)
To: linux-kernel, linuxppc-dev
Cc: Ammar Faizi, Michael Ellerman, Benjamin Herrenschmidt,
Paul Mackerras, Yang Li, Cédric Le Goater
Commit 930914b7d528fc ("powerpc/xive: Add a debugfs file to dump
internal XIVE state") forgot to add a null check.
Add it.
Cc: Cédric Le Goater <clg@kaod.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Fixes: 930914b7d528fc6b0249bffc00564100bcf6ef75 ("powerpc/xive: Add a debugfs file to dump internal XIVE state")
Signed-off-by: Ammar Faizi <ammarfaizi2@gmail.com>
---
arch/powerpc/sysdev/xive/spapr.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index f143b6f111ac..1179632560b8 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -653,6 +653,9 @@ static int xive_spapr_debug_show(struct seq_file *m, void *private)
struct xive_irq_bitmap *xibm;
char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
list_for_each_entry(xibm, &xive_irq_bitmaps, list) {
memset(buf, 0, PAGE_SIZE);
bitmap_print_to_pagebuf(true, buf, xibm->bitmap, xibm->count);
--
2.32.0
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] powerpc/xive: Add missing null check after calling kmalloc
2021-12-26 13:54 [PATCH] powerpc/xive: Add missing null check after calling kmalloc Ammar Faizi
@ 2022-01-03 6:41 ` Cédric Le Goater
0 siblings, 0 replies; 2+ messages in thread
From: Cédric Le Goater @ 2022-01-03 6:41 UTC (permalink / raw)
To: Ammar Faizi, linux-kernel, linuxppc-dev
Cc: Michael Ellerman, Benjamin Herrenschmidt, Paul Mackerras, Yang Li
On 12/26/21 14:54, Ammar Faizi wrote:
> Commit 930914b7d528fc ("powerpc/xive: Add a debugfs file to dump
> internal XIVE state") forgot to add a null check.
>
> Add it.
>
> Cc: Cédric Le Goater <clg@kaod.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Fixes: 930914b7d528fc6b0249bffc00564100bcf6ef75 ("powerpc/xive: Add a debugfs file to dump internal XIVE state")
> Signed-off-by: Ammar Faizi <ammarfaizi2@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Thanks,
C.
^ permalink raw reply [flat|nested] 2+ messages in thread
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