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db0487abd6
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Russell King <linux@armlinux.org.uk> Cc: Jinbum Park <jinb.park7@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
31 lines
666 B
C
31 lines
666 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <asm/ptdump.h>
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static int ptdump_show(struct seq_file *m, void *v)
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{
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struct ptdump_info *info = m->private;
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ptdump_walk_pgd(m, info);
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return 0;
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}
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static int ptdump_open(struct inode *inode, struct file *file)
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{
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return single_open(file, ptdump_show, inode->i_private);
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}
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static const struct file_operations ptdump_fops = {
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.open = ptdump_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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void ptdump_debugfs_register(struct ptdump_info *info, const char *name)
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{
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debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
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}
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