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Commit fd380656 authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Michael Ellerman
Browse files

powerpc/xive: Add a check for memory allocation failure 



The result of this kzalloc is not checked. Add a check and corresponding
error handling code.

Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: default avatarGreg Kurz <groug@kaod.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/cc53462734dfeaf15b6bad0e626b483de18656b4.1564647619.git.christophe.jaillet@wanadoo.fr
parent b214a8f2

arch/powerpc/sysdev/xive/spapr.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -53,6 +53,10 @@ static int xive_irq_bitmap_add(int base, int count) 
	xibm->base = base;

	xibm->base = base;

	xibm->count = count;

	xibm->count = count;

	xibm->bitmap = kzalloc(xibm->count, GFP_KERNEL);

	xibm->bitmap = kzalloc(xibm->count, GFP_KERNEL);

	if (!xibm->bitmap) {

		kfree(xibm);

		return -ENOMEM;

	}

	list_add(&xibm->list, &xive_irq_bitmaps);

	list_add(&xibm->list, &xive_irq_bitmaps);





	pr_info("Using IRQ range [%x-%x]", xibm->base,

	pr_info("Using IRQ range [%x-%x]", xibm->base,