From: Tvrtko Ursulin <tvrtko.ursu...@intel.com>

Instead of asserting just skip trying to print columns when terminal is
too narrow.

At the same time fix some type confusion to fix calculations going huge.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Closes: https://gitlab.freedesktop.org/drm/igt-gpu-tools/-/issues/143
---
 tools/intel_gpu_top.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index 472ce3f13ba9..6d1397cb8214 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -926,7 +926,7 @@ static void free_display_clients(struct igt_drm_clients 
*clients)
        free(clients);
 }
 
-static unsigned int n_spaces(const unsigned int n)
+static int n_spaces(const int n)
 {
        static const char *spaces[] = {
                " ",
@@ -950,7 +950,7 @@ static unsigned int n_spaces(const unsigned int n)
                "                   ",
 #define MAX_SPACES 19
        };
-       unsigned int i, r = n;
+       int i, r = n;
 
        while (r) {
                if (r > MAX_SPACES)
@@ -972,7 +972,8 @@ print_percentage_bar(double percent, double max, int 
max_len, bool numeric)
        int bar_len, i, len = max_len - 2;
        const int w = 8;
 
-       assert(max_len > 0);
+       if (len < 2) /* For edge lines '|' */
+               return;
 
        bar_len = ceil(w * percent * len / max);
        if (bar_len > w * len)
@@ -986,6 +987,8 @@ print_percentage_bar(double percent, double max, int 
max_len, bool numeric)
                printf("%s", bars[i]);
 
        len -= (bar_len + (w - 1)) / w;
+       if (len < 1)
+               return;
        n_spaces(len);
 
        putchar('|');
@@ -2001,8 +2004,7 @@ print_clients_header(struct igt_drm_clients *clients, int 
lines,
                                 4 : clients->max_name_len; /* At least "NAME" 
*/
 
        if (output_mode == INTERACTIVE) {
-               unsigned int num_active = 0;
-               int len;
+               int len, num_active = 0;
 
                if (lines++ >= con_h)
                        return lines;
-- 
2.39.2

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