From cf696091d38b61ff9e4e4d592522a2daf5e3637e Mon Sep 17 00:00:00 2001 From: Luben Tuikov Date: Thu, 11 Mar 2021 10:34:28 -0500 Subject: drm/amdgpu: Return result fix in RAS The low level EEPROM write method, doesn't return 1, but the number of bytes written. Thus do not compare to 1, instead, compare to greater than 0 for success. Other cleanup: if the lower layers returned -errno, then return that, as opposed to overwriting the error code with one-fits-all -EINVAL. For instance, some return -EAGAIN. Cc: Jean Delvare Cc: Alexander Deucher Cc: Andrey Grodzovsky Cc: Lijo Lazar Cc: Stanley Yang Cc: Hawking Zhang Signed-off-by: Luben Tuikov Reviewed-by: Alexander Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index b0a0cae24a84..6ef3cfea6e6e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -355,8 +355,9 @@ static int amdgpu_ras_debugfs_ctrl_parse_data(struct file *f, * to see which blocks support RAS on a particular asic. * */ -static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user *buf, - size_t size, loff_t *pos) +static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, + const char __user *buf, + size_t size, loff_t *pos) { struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private; struct ras_debug_if data; @@ -370,7 +371,7 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user * ret = amdgpu_ras_debugfs_ctrl_parse_data(f, buf, size, pos, &data); if (ret) - return -EINVAL; + return ret; if (data.op == 3) { ret = amdgpu_reserve_page_direct(adev, data.inject.address); @@ -439,21 +440,24 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user * * will reset EEPROM table to 0 entries. * */ -static ssize_t amdgpu_ras_debugfs_eeprom_write(struct file *f, const char __user *buf, - size_t size, loff_t *pos) +static ssize_t amdgpu_ras_debugfs_eeprom_write(struct file *f, + const char __user *buf, + size_t size, loff_t *pos) { struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private; int ret; ret = amdgpu_ras_eeprom_reset_table( - &(amdgpu_ras_get_context(adev)->eeprom_control)); + &(amdgpu_ras_get_context(adev)->eeprom_control)); - if (ret == 1) { + if (ret > 0) { + /* Something was written to EEPROM. + */ amdgpu_ras_get_context(adev)->flags = RAS_DEFAULT_FLAGS; return size; } else { - return -EIO; + return ret; } } @@ -1994,7 +1998,7 @@ free: kfree(*data); con->eh_data = NULL; out: - dev_warn(adev->dev, "Failed to initialize ras recovery!\n"); + dev_warn(adev->dev, "Failed to initialize ras recovery! (%d)\n", ret); /* * Except error threshold exceeding case, other failure cases in this -- cgit