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

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Date:   Thu, 21 Sep 2017 13:23:13 +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 3/3] EDAC: skx_edac: 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/skx_edac.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/edac/skx_edac.c b/drivers/edac/skx_edac.c
index 16dea97..a7b25bb 100644
--- a/drivers/edac/skx_edac.c
+++ b/drivers/edac/skx_edac.c
@@ -466,6 +466,11 @@ static int skx_register_mci(struct skx_imc *imc)
 
 	mci->ctl_name = kasprintf(GFP_KERNEL, "Skylake Socket#%d IMC#%d",
 				  imc->node_id, imc->lmc);
+	if (!mci->ctl_name) {
+		rc = -ENOMEM;
+		goto fail0;
+	}
+
 	mci->mtype_cap = MEM_FLAG_DDR4;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE;
 	mci->edac_cap = EDAC_FLAG_NONE;
@@ -491,6 +496,7 @@ static int skx_register_mci(struct skx_imc *imc)
 
 fail:
 	kfree(mci->ctl_name);
+fail0:
 	edac_mc_free(mci);
 	imc->mci = NULL;
 	return rc;
-- 
1.9.1