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authorChenghai Huang2024-04-07 15:59:57 +0800
committerHerbert Xu2024-04-12 15:07:53 +0800
commit0a6e038f0c4d9a5d5f638757fa03ef6ffc550b6a (patch)
tree0102f743b75e57a33a4c17c6d7c03819f337163b /drivers
parent56f37ceaf4409d0c3a69101b7ea5d14eb6568f42 (diff)
crypto: hisilicon - Adjust debugfs creation and release order
There is a scenario where the file directory is created but the file memory is not set. In this case, if a user accesses the file, an error occurs. So during the creation process of debugfs, memory should be allocated first before creating the directory. In the release process, the directory should be deleted first before releasing the memory to avoid the situation where the memory does not exist when accessing the directory. In addition, the directory released by the debugfs is a global variable. When the debugfs of an accelerator fails to be initialized, releasing the directory of the global variable affects the debugfs initialization of other accelerators. The debugfs root directory released by debugfs init should be a member of qm, not a global variable. Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/crypto/hisilicon/hpre/hpre_main.c21
-rw-r--r--drivers/crypto/hisilicon/sec2/sec_main.c23
-rw-r--r--drivers/crypto/hisilicon/zip/zip_main.c24
3 files changed, 32 insertions, 36 deletions
diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index d93aa6630a57..25b44416da45 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -1074,41 +1074,40 @@ static int hpre_debugfs_init(struct hisi_qm *qm)
struct device *dev = &qm->pdev->dev;
int ret;
- qm->debug.debug_root = debugfs_create_dir(dev_name(dev),
- hpre_debugfs_root);
-
- qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET;
- qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN;
ret = hisi_qm_regs_debugfs_init(qm, hpre_diff_regs, ARRAY_SIZE(hpre_diff_regs));
if (ret) {
dev_warn(dev, "Failed to init HPRE diff regs!\n");
- goto debugfs_remove;
+ return ret;
}
+ qm->debug.debug_root = debugfs_create_dir(dev_name(dev),
+ hpre_debugfs_root);
+ qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET;
+ qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN;
+
hisi_qm_debug_init(qm);
if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) {
ret = hpre_ctrl_debug_init(qm);
if (ret)
- goto failed_to_create;
+ goto debugfs_remove;
}
hpre_dfx_debug_init(qm);
return 0;
-failed_to_create:
- hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));
debugfs_remove:
debugfs_remove_recursive(qm->debug.debug_root);
+ hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));
return ret;
}
static void hpre_debugfs_exit(struct hisi_qm *qm)
{
- hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));
-
debugfs_remove_recursive(qm->debug.debug_root);
+
+ hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));
}
static int hpre_pre_store_cap_reg(struct hisi_qm *qm)
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index f4e10741610f..853b1cb85016 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -901,37 +901,36 @@ static int sec_debugfs_init(struct hisi_qm *qm)
struct device *dev = &qm->pdev->dev;
int ret;
- qm->debug.debug_root = debugfs_create_dir(dev_name(dev),
- sec_debugfs_root);
- qm->debug.sqe_mask_offset = SEC_SQE_MASK_OFFSET;
- qm->debug.sqe_mask_len = SEC_SQE_MASK_LEN;
-
ret = hisi_qm_regs_debugfs_init(qm, sec_diff_regs, ARRAY_SIZE(sec_diff_regs));
if (ret) {
dev_warn(dev, "Failed to init SEC diff regs!\n");
- goto debugfs_remove;
+ return ret;
}
+ qm->debug.debug_root = debugfs_create_dir(dev_name(dev),
+ sec_debugfs_root);
+ qm->debug.sqe_mask_offset = SEC_SQE_MASK_OFFSET;
+ qm->debug.sqe_mask_len = SEC_SQE_MASK_LEN;
+
hisi_qm_debug_init(qm);
ret = sec_debug_init(qm);
if (ret)
- goto failed_to_create;
+ goto debugfs_remove;
return 0;
-failed_to_create:
- hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(sec_diff_regs));
debugfs_remove:
- debugfs_remove_recursive(sec_debugfs_root);
+ debugfs_remove_recursive(qm->debug.debug_root);
+ hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(sec_diff_regs));
return ret;
}
static void sec_debugfs_exit(struct hisi_qm *qm)
{
- hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(sec_diff_regs));
-
debugfs_remove_recursive(qm->debug.debug_root);
+
+ hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(sec_diff_regs));
}
static int sec_show_last_regs_init(struct hisi_qm *qm)
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index c065fd867161..c94a7b20d07e 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -887,36 +887,34 @@ static int hisi_zip_ctrl_debug_init(struct hisi_qm *qm)
static int hisi_zip_debugfs_init(struct hisi_qm *qm)
{
struct device *dev = &qm->pdev->dev;
- struct dentry *dev_d;
int ret;
- dev_d = debugfs_create_dir(dev_name(dev), hzip_debugfs_root);
-
- qm->debug.sqe_mask_offset = HZIP_SQE_MASK_OFFSET;
- qm->debug.sqe_mask_len = HZIP_SQE_MASK_LEN;
- qm->debug.debug_root = dev_d;
ret = hisi_qm_regs_debugfs_init(qm, hzip_diff_regs, ARRAY_SIZE(hzip_diff_regs));
if (ret) {
dev_warn(dev, "Failed to init ZIP diff regs!\n");
- goto debugfs_remove;
+ return ret;
}
+ qm->debug.sqe_mask_offset = HZIP_SQE_MASK_OFFSET;
+ qm->debug.sqe_mask_len = HZIP_SQE_MASK_LEN;
+ qm->debug.debug_root = debugfs_create_dir(dev_name(dev),
+ hzip_debugfs_root);
+
hisi_qm_debug_init(qm);
if (qm->fun_type == QM_HW_PF) {
ret = hisi_zip_ctrl_debug_init(qm);
if (ret)
- goto failed_to_create;
+ goto debugfs_remove;
}
hisi_zip_dfx_debug_init(qm);
return 0;
-failed_to_create:
- hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hzip_diff_regs));
debugfs_remove:
- debugfs_remove_recursive(hzip_debugfs_root);
+ debugfs_remove_recursive(qm->debug.debug_root);
+ hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hzip_diff_regs));
return ret;
}
@@ -940,10 +938,10 @@ static void hisi_zip_debug_regs_clear(struct hisi_qm *qm)
static void hisi_zip_debugfs_exit(struct hisi_qm *qm)
{
- hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hzip_diff_regs));
-
debugfs_remove_recursive(qm->debug.debug_root);
+ hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hzip_diff_regs));
+
if (qm->fun_type == QM_HW_PF) {
hisi_zip_debug_regs_clear(qm);
qm->debug.curr_qm_qp_num = 0;