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| author |   Ammar Faizi <ammarfaizi2@gmail.com> | 2021-12-26 20:54:02 +0700 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2022-01-04 16:03:05 +1100 |
| commit | 18dbfcdedc802f9500b2c29794f22a31d27639c0 (patch) | |
| tree | e6ca71ca1a06b9debe10d844f201bd730b961545 | |
| parent | powerpc/floppy: Remove usage of the deprecated "pci-dma-compat.h" API (diff) | |
| download | wireguard-linux-18dbfcdedc802f9500b2c29794f22a31d27639c0.tar.xz wireguard-linux-18dbfcdedc802f9500b2c29794f22a31d27639c0.zip | |
powerpc/xive: Add missing null check after calling kmalloc
Commit 930914b7d528fc ("powerpc/xive: Add a debugfs file to dump
internal XIVE state") forgot to add a null check.
Add it.
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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211226135314.251221-1-ammar.faizi@intel.com
| -rw-r--r-- | arch/powerpc/sysdev/xive/spapr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index dfc4634335cc..928f95004501 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); |