From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Mon, 11 Jul 2022 19:14:48 +0000 (+0200)
Subject: cxl: Fix a memory leak in an error handling path
X-Git-Tag: v6.0-rc1~136^2~22
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=3a15b45b5454da862376b5d69a4967f5c6fa1368;p=tomoyo%2Ftomoyo-test1.git

cxl: Fix a memory leak in an error handling path

A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the
error handling path of afu_allocate_irqs().

Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ce5869418f5838187946eb6b11a52715a93ece3d.1657566849.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index 0ce91d99aead..b730e022a48e 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -349,6 +349,7 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
 
 out:
 	cxl_ops->release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
+	bitmap_free(ctx->irq_bitmap);
 	afu_irq_name_free(ctx);
 	return -ENOMEM;
 }