diff options
Diffstat (limited to 'drivers/s390/char/zcore.c')
| -rw-r--r-- | drivers/s390/char/zcore.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 76d3c50bf078..405a60538630 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -51,7 +51,7 @@ static struct dentry *zcore_dir; static struct dentry *zcore_memmap_file; static struct dentry *zcore_reipl_file; static struct dentry *zcore_hsa_file; -static struct ipl_parameter_block *ipl_block; +static struct ipl_parameter_block *zcore_ipl_block; static char hsa_buf[PAGE_SIZE] __aligned(PAGE_SIZE); @@ -182,8 +182,8 @@ static const struct file_operations zcore_memmap_fops = { static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf, size_t count, loff_t *ppos) { - if (ipl_block) { - diag308(DIAG308_SET, ipl_block); + if (zcore_ipl_block) { + diag308(DIAG308_SET, zcore_ipl_block); diag308(DIAG308_LOAD_CLEAR, NULL); } return count; @@ -191,7 +191,7 @@ static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf, static int zcore_reipl_open(struct inode *inode, struct file *filp) { - return nonseekable_open(inode, filp); + return stream_open(inode, filp); } static int zcore_reipl_release(struct inode *inode, struct file *filp) @@ -265,18 +265,20 @@ static int __init zcore_reipl_init(void) return rc; if (ipib_info.ipib == 0) return 0; - ipl_block = (void *) __get_free_page(GFP_KERNEL); - if (!ipl_block) + zcore_ipl_block = (void *) __get_free_page(GFP_KERNEL); + if (!zcore_ipl_block) return -ENOMEM; if (ipib_info.ipib < sclp.hsa_size) - rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE); + rc = memcpy_hsa_kernel(zcore_ipl_block, ipib_info.ipib, + PAGE_SIZE); else - rc = memcpy_real(ipl_block, (void *) ipib_info.ipib, PAGE_SIZE); - if (rc || (__force u32)csum_partial(ipl_block, ipl_block->hdr.len, 0) != + rc = memcpy_real(zcore_ipl_block, (void *) ipib_info.ipib, + PAGE_SIZE); + if (rc || (__force u32)csum_partial(zcore_ipl_block, zcore_ipl_block->hdr.len, 0) != ipib_info.checksum) { TRACE("Checksum does not match\n"); - free_page((unsigned long) ipl_block); - ipl_block = NULL; + free_page((unsigned long) zcore_ipl_block); + zcore_ipl_block = NULL; } return 0; } |