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authorVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>2013-10-28 18:08:15 +0200
committerBrian Norris <computersforpeace@gmail.com>2013-11-11 11:18:15 -0800
commitb99959323732ed0c81da2488252f64c02ad37fbe (patch)
tree87052576102b76978079a176af3c582bff072b3d /drivers/mtd/mtdchar.c
parent80bd33acdaa21fafa8ff4391ccdf879d227111bb (diff)
downloadop-kernel-dev-b99959323732ed0c81da2488252f64c02ad37fbe.zip
op-kernel-dev-b99959323732ed0c81da2488252f64c02ad37fbe.tar.gz
mtd: mtdchar: return expected errors on mmap() call
According both to POSIX.1-2008 and Linux Programmer's Manual mmap() syscall shouldn't return undocumented ENOSYS, this change replaces the errno with more appropriate ENODEV and EACCESS. Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Cc: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd/mtdchar.c')
-rw-r--r--drivers/mtd/mtdchar.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 9aa0c5e..2147e73 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1100,7 +1100,7 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file,
return (unsigned long) -EINVAL;
ret = mtd_get_unmapped_area(mtd, len, offset, flags);
- return ret == -EOPNOTSUPP ? -ENOSYS : ret;
+ return ret == -EOPNOTSUPP ? -ENODEV : ret;
}
#endif
@@ -1125,9 +1125,9 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
#endif
return vm_iomap_memory(vma, map->phys, map->size);
}
- return -ENOSYS;
+ return -ENODEV;
#else
- return vma->vm_flags & VM_SHARED ? 0 : -ENOSYS;
+ return vma->vm_flags & VM_SHARED ? 0 : -EACCES;
#endif
}
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