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hypfs_create_cpu_files(): add missing check for hypfs_mkdir() failure

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[ Upstream commit 00cdfdcfa0806202aea56b02cedbf87ef1e75df8 ]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Al Viro
2025-03-17 22:06:04 -04:00
committed by Greg Kroah-Hartman
parent 4eda8a85d4
commit 3011cdc5cb
1 changed files with 2 additions and 0 deletions
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arch/s390/hypfs/hypfs_diag_fs.c
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@@ -208,6 +208,8 @@ static int hypfs_create_cpu_files(struct dentry *cpus_dir, void *cpu_info)
snprintf(buffer, TMP_SIZE, "%d", cpu_info__cpu_addr(diag204_get_info_type(), snprintf(buffer, TMP_SIZE, "%d", cpu_info__cpu_addr(diag204_get_info_type(),
cpu_info)); cpu_info));
cpu_dir = hypfs_mkdir(cpus_dir, buffer); cpu_dir = hypfs_mkdir(cpus_dir, buffer);
if (IS_ERR(cpu_dir))
return PTR_ERR(cpu_dir);
rc = hypfs_create_u64(cpu_dir, "mgmtime", rc = hypfs_create_u64(cpu_dir, "mgmtime",
cpu_info__acc_time(diag204_get_info_type(), cpu_info) - cpu_info__acc_time(diag204_get_info_type(), cpu_info) -
cpu_info__lp_time(diag204_get_info_type(), cpu_info)); cpu_info__lp_time(diag204_get_info_type(), cpu_info));