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charset="utf-8" Content-ID: Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-OriginatorOrg: oppo.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SEZPR02MB7164.apcprd02.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 11cdcb2c-3f9a-4b03-2476-08dc383a47c7 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Feb 2024 08:50:14.3095 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f1905eb1-c353-41c5-9516-62b4a54b5ee6 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: TOJVvBilI0oBwEmmdSu/o68AvRPTQb23YBjAl9kqetDzkWoyPUrwipK7oGPPEH2oxpbor7/NksL1qFVfXRmBvw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEZPR02MB7073 If vm_map_ram(page, 0, 0) would cause panic by vmap_pages_range_noflush, so change IS_ERR to IS_ERR_OR_NULL to fix this. Signed-off-by: Hailong.Liu --- mm/vmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index d12a17fc0c17..109732006cf7 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2387,7 +2387,7 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node) if (likely(count <=3D VMAP_MAX_ALLOC)) { mem =3D vb_alloc(size, GFP_KERNEL); - if (IS_ERR(mem)) + if (IS_ERR_OR_NULL(mem)) return NULL; addr =3D (unsigned long)mem; } else { -- 2.34.1