Messages in this thread Patch in this message | | | From | Ammar Faizi <> | Subject | [PATCH] powerpc/xive: Add missing null check after calling kmalloc | Date | Sun, 26 Dec 2021 20:54:02 +0700 |
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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
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