2020-08-05 07:53:17

by Rolf Eike Beer

Subject: [PATCH] binfmt_elf: fix documented return value for load_elf_phdrs()

This function has never returned anything but a plain NULL.

Fixes: 6a8d38945cf4e6e819d6b550250615db763065a0
Signed-off-by: Rolf Eike Beer <[email protected]>
---
fs/binfmt_elf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 9fe3b51c116a..251298d25c8c 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -428,7 +428,7 @@ static int elf_read(struct file *file, void *buf, size_t len, loff_t pos)
*
* Loads ELF program headers from the binary file elf_file, which has the ELF
* header pointed to by elf_ex, into a newly allocated array. The caller is
- * responsible for freeing the allocated data. Returns an ERR_PTR upon failure.
+ * responsible for freeing the allocated data. Returns NULL upon failure.
*/
static struct elf_phdr *load_elf_phdrs(const struct elfhdr *elf_ex,
struct file *elf_file)
--
2.28.0


--
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 Göttingen, Germany
Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055

emlix - smart embedded open source

2020-08-05 08:54:23

by Rolf Eike Beer

Subject: binfmt_elf: simplify error handling in load_elf_phdrs()

---
fs/binfmt_elf.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 251298d25c8c..64b4b47448af 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -434,7 +434,7 @@ static struct elf_phdr *load_elf_phdrs(const struct elfhdr *elf_ex,
struct file *elf_file)
{
struct elf_phdr *elf_phdata = NULL;
- int retval, err = -1;
+ int retval = -1;
unsigned int size;

/*
@@ -456,15 +456,9 @@ static struct elf_phdr *load_elf_phdrs(const struct elfhdr *elf_ex,

/* Read in the program headers */
retval = elf_read(elf_file, elf_phdata, size, elf_ex->e_phoff);
- if (retval < 0) {
- err = retval;
- goto out;
- }

- /* Success! */
- err = 0;
out:
- if (err) {
+ if (retval) {
kfree(elf_phdata);
elf_phdata = NULL;
}
--
2.28.0


--
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 Göttingen, Germany
Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055

emlix - smart embedded open source