linux-kernel - [PATCH 1/3] EDAC: i7core: Handle return value of kasprintf

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Message-Id: <1505980393-20307-2-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Thu, 21 Sep 2017 13:23:11 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     mchehab@...nel.org, bp@...en8.de, tony.luck@...el.com
Cc:     linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] EDAC: i7core: Handle return value of kasprintf

kasprintf() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/edac/i7core_edac.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index c16c3b9..054f361 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -2161,6 +2161,11 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
 	mci->mod_name = "i7core_edac.c";
 	mci->ctl_name = kasprintf(GFP_KERNEL, "i7 core #%d",
 				  i7core_dev->socket);
+	if (!mci->ctl_name) {
+		rc = -ENOMEM;
+		goto fail1;
+	}
+
 	mci->dev_name = pci_name(i7core_dev->pdev[0]);
 	mci->ctl_page_to_phys = NULL;
 
@@ -2214,6 +2219,7 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
 
 fail0:
 	kfree(mci->ctl_name);
+fail1:
 	edac_mc_free(mci);
 	i7core_dev->mci = NULL;
 	return rc;
-- 
1.9.1