swapon: fix compiler warnings [-Wcast-qual]

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/sys-utils/swapon.c b/sys-utils/swapon.c
index 4ef2f1c9da810bec4f25e03d5fbb115678fe03a0..357dcb3f741ce9acc2d02c124602eb6fa124ec84 100644 (file)
--- a/sys-utils/swapon.c
+++ b/sys-utils/swapon.c
@@ -462,12 +462,12 @@ static unsigned long long swap_get_size(const struct swap_device *dev,
 {
        unsigned int last_page = 0;
        const unsigned int swap_version = SWAP_VERSION;
-       struct swap_header_v1_2 *s;
+       const struct swap_header_v1_2 *s;
 
        assert(dev);
        assert(dev->pagesize > 0);
 
-       s = (struct swap_header_v1_2 *) hdr;
+       s = (const struct swap_header_v1_2 *) hdr;
 
        if (s->version == swap_version)
                last_page = s->last_page;
@@ -479,7 +479,7 @@ static unsigned long long swap_get_size(const struct swap_device *dev,
 
 static void swap_get_info(struct swap_device *dev, const char *hdr)
 {
-       struct swap_header_v1_2 *s = (struct swap_header_v1_2 *) hdr;
+       const struct swap_header_v1_2 *s = (const struct swap_header_v1_2 *) hdr;
 
        assert(dev);