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-rw-r--r--lib/seq_buf.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/seq_buf.c b/lib/seq_buf.c
index 4e865d42ab03..0a68f7aa85d6 100644
--- a/lib/seq_buf.c
+++ b/lib/seq_buf.c
@@ -91,6 +91,7 @@ int seq_buf_printf(struct seq_buf *s, const char *fmt, ...)
return ret;
}
+EXPORT_SYMBOL_GPL(seq_buf_printf);
#ifdef CONFIG_BINARY_PRINTF
/**
@@ -228,8 +229,10 @@ int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
WARN_ON(s->size == 0);
+ BUILD_BUG_ON(MAX_MEMHEX_BYTES * 2 >= HEX_CHARS);
+
while (len) {
- start_len = min(len, HEX_CHARS - 1);
+ start_len = min(len, MAX_MEMHEX_BYTES);
#ifdef __BIG_ENDIAN
for (i = 0, j = 0; i < start_len; i++) {
#else
@@ -242,12 +245,14 @@ int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
break;
/* j increments twice per loop */
- len -= j / 2;
hex[j++] = ' ';
seq_buf_putmem(s, hex, j);
if (seq_buf_has_overflowed(s))
return -1;
+
+ len -= start_len;
+ data += start_len;
}
return 0;
}
@@ -284,7 +289,7 @@ int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc)
}
/**
- * seq_buf_to_user - copy the squence buffer to user space
+ * seq_buf_to_user - copy the sequence buffer to user space
* @s: seq_buf descriptor
* @ubuf: The userspace memory location to copy to
* @cnt: The amount to copy