[RFC PATCH] ubifs: Call ubifs_iput when ubifs_iget is used

[Alexander Dahl]

Hello Michael,

Am Mon, Aug 05, 2024 at 07:31:40PM +0200 schrieb Michael Trimarchi:
> The inode should be freed after a reference is get to avoid
> memory leak
> 
> Signed-off-by: Michael Trimarchi <michael at amarulasolutions.com>

Tested this on top of my recent ubifs series.  No obvious problems
found on U-Boot command line with various combinations of commands, 
no crashes, so …

Tested-by: Alexander Dahl <ada at thorsis.com>

Greets
Alex

> ---
>  fs/ubifs/ubifs.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
> index 048730db7f..6acd6c3776 100644
> --- a/fs/ubifs/ubifs.c
> +++ b/fs/ubifs/ubifs.c
> @@ -319,9 +319,7 @@ static int filldir(struct ubifs_info *c, const char *name, int namlen,
>  	}
>  	ctime_r((time_t *)&inode->i_mtime, filetime);
>  	printf("%9lld  %24.24s  ", inode->i_size, filetime);
> -#ifndef __UBOOT__
>  	ubifs_iput(inode);
> -#endif
>  
>  	printf("%s\n", name);
>  
> @@ -557,6 +555,7 @@ static unsigned long ubifs_findfile(struct super_block *sb, char *filename)
>  
>  			/* We have some sort of symlink recursion, bail out */
>  			if (symlink_count++ > 8) {
> +				ubifs_iput(inode);
>  				printf("Symlink recursion, aborting\n");
>  				return 0;
>  			}
> @@ -568,6 +567,7 @@ static unsigned long ubifs_findfile(struct super_block *sb, char *filename)
>  				 * the leading slash */
>  				next = name = link_name + 1;
>  				root_inum = 1;
> +				ubifs_iput(inode);
>  				continue;
>  			}
>  			/* Relative to cur dir */
> @@ -575,6 +575,7 @@ static unsigned long ubifs_findfile(struct super_block *sb, char *filename)
>  					link_name, next == NULL ? "" : next);
>  			memcpy(symlinkpath, buf, sizeof(buf));
>  			next = name = symlinkpath;
> +			ubifs_iput(inode);
>  			continue;
>  		}
>  
> @@ -583,8 +584,10 @@ static unsigned long ubifs_findfile(struct super_block *sb, char *filename)
>  		 */
>  
>  		/* Found the node!  */
> -		if (!next || *next == '\0')
> +		if (!next || *next == '\0') {
> +			ubifs_iput(inode);
>  			return inum;
> +		}
>  
>  		root_inum = inum;
>  		name = next;
> -- 
> 2.43.0
>